diff --git a/Xcode/CloverConfigPlistValidator/src/main.cpp b/Xcode/CloverConfigPlistValidator/src/main.cpp
index a5e39698b..36242505e 100755
--- a/Xcode/CloverConfigPlistValidator/src/main.cpp
+++ b/Xcode/CloverConfigPlistValidator/src/main.cpp
@@ -61,7 +61,7 @@ extern "C" int main(int argc, const char * argv[])
       //path = "/JiefLand/5.Devel/Clover/user config/BS.plist";
       //path = "/JiefLand/5.Devel/Clover/user config/maclinuxG4/config.plist";
       //path = "/JiefLand/5.Devel/Clover/user config/MICKHAEL/EFI_Github/CLOVER/config.plist";
-      path = "/JiefLand/5.Devel/Clover/user config/Slice/2021-04-29/config.plist";
+      path = "/JiefLand/5.Devel/Clover/user config/MacKonsti/2021-05-17/config-test.plist";
   #endif
   
   if ( !path ) {
diff --git a/rEFIt_UEFI/Platform/AcpiPatcher.cpp b/rEFIt_UEFI/Platform/AcpiPatcher.cpp
index 5d83c91c1..9d27cd308 100644
--- a/rEFIt_UEFI/Platform/AcpiPatcher.cpp
+++ b/rEFIt_UEFI/Platform/AcpiPatcher.cpp
@@ -399,7 +399,7 @@ BOOLEAN FixAsciiTableHeader(UINT8 *Str, UINTN Len)
 BOOLEAN PatchTableHeader(EFI_ACPI_DESCRIPTION_HEADER *Header)
 {
   BOOLEAN Ret1, Ret2, Ret3;
-  if (!(gSettings.ACPI.DSDT.FixDsdt & FIX_HEADERS) && !gSettings.ACPI.FixHeaders) {
+  if ( !gSettings.ACPI.FixHeaders ) {
     return FALSE;
   }
   Ret1 = FixAsciiTableHeader((UINT8*)&Header->CreatorId, 4);
@@ -438,7 +438,7 @@ void PatchAllTables()
     }
     EFI_ACPI_DESCRIPTION_HEADER* NewTable = (EFI_ACPI_DESCRIPTION_HEADER*)(UINTN)BufferPtr;
     CopyMem(NewTable, Table, Len);
-    if ((gSettings.ACPI.DSDT.FixDsdt & FIX_HEADERS) || gSettings.ACPI.FixHeaders) {
+    if ( gSettings.ACPI.FixHeaders ) {
       // Merged tables already have the header patched, so no need to do it again
       if (!IsXsdtEntryMerged(IndexFromXsdtEntryPtr(Ptr))) {
         // table header NOT already patched
diff --git a/rEFIt_UEFI/Platform/Settings.h b/rEFIt_UEFI/Platform/Settings.h
index 30e9be5cb..7b60c2933 100755
--- a/rEFIt_UEFI/Platform/Settings.h
+++ b/rEFIt_UEFI/Platform/Settings.h
@@ -1086,7 +1086,7 @@ public:
         ResetAddr = configPlist.dgetResetAddr();
         ResetVal = configPlist.dgetResetVal();
         SlpSmiEnable = configPlist.dgetSlpSmiEnable();
-        FixHeaders = configPlist.dgetFixHeaders();
+        FixHeaders = configPlist.dgetFixHeaders() || configPlist.DSDT.Fixes.dgetFixHeaders();
         FixMCFG = configPlist.dgetFixMCFG();
         NoASPM = configPlist.dgetNoASPM();
         smartUPS = configPlist.dgetsmartUPS();
diff --git a/rEFIt_UEFI/Settings/ConfigManager.cpp b/rEFIt_UEFI/Settings/ConfigManager.cpp
index 5b2555059..e00d198b6 100644
--- a/rEFIt_UEFI/Settings/ConfigManager.cpp
+++ b/rEFIt_UEFI/Settings/ConfigManager.cpp
@@ -883,7 +883,10 @@ EFI_STATUS ConfigManager::LoadConfig(const XStringW& ConfName)
     log_technical_bug("%s : !selfOem.isInitialized()", __PRETTY_FUNCTION__);
   }
   EFI_STATUS Status = LoadConfigPlist(ConfName);
-  if ( EFI_ERROR(Status) ) return Status;
+  if ( EFI_ERROR(Status) ) {
+    DBG("LoadConfigPlist return %s. Config not loaded\n", efiStrError(Status));
+    return Status;
+  }
   
   /*Status = */ LoadSMBIOSPlist(L"smbios"_XSW); // we don't need Status. If not loaded correctly, smbiosPlist is !defined and will be ignored by AssignOldNewSettings()
 
diff --git a/rEFIt_UEFI/Settings/ConfigPlist/ConfigPlistClass.h b/rEFIt_UEFI/Settings/ConfigPlist/ConfigPlistClass.h
index c6ff9fb4f..20d95bae7 100755
--- a/rEFIt_UEFI/Settings/ConfigPlist/ConfigPlistClass.h
+++ b/rEFIt_UEFI/Settings/ConfigPlist/ConfigPlistClass.h
@@ -101,6 +101,28 @@ public:
   
   virtual void getFields(XmlDictField** fields, size_t* nb) override { *fields = m_fields; *nb = sizeof(m_fields)/sizeof(m_fields[0]); };
 
+  virtual bool validate(XmlLiteParser* xmlLiteParser, const XString8& xmlPath, const XmlParserPosition& keyPos, bool generateErrors) override {
+    if ( !super::validate(xmlLiteParser, xmlPath, keyPos, generateErrors) ) return false;
+    if ( !isDefined() ) return true;
+    if ( LString8(ACPI.DSDT.Fixes.ACPI_DSDT_Fixe_Array[29].getNewName()) != "FixHeaders_20000000"_XS8 ) {
+      log_technical_bug("ACPI_DSDT_Fixe_Array[29].getNewName() != \"FixHeaders_20000000\"");
+    }
+    if ( ACPI.getFixHeaders().isDefined()  &&  ACPI.DSDT.Fixes.ACPI_DSDT_Fixe_Array[29].isDefined() ) {
+      if ( ACPI.getFixHeaders().value() == ACPI.DSDT.Fixes.ACPI_DSDT_Fixe_Array[29].dgetEnabled() ) {
+        xmlLiteParser->addWarning(generateErrors, S8Printf("FixHeaders exists in ACPI and ACPI/DSDT/Fixes. Delete FixHeaders from ACPI/DSDT/Fixes."));
+      }else{
+        if ( ACPI.getFixHeaders().value()  ||  ACPI.DSDT.Fixes.ACPI_DSDT_Fixe_Array[29].dgetEnabled() ) {
+          if ( ACPI.getFixHeaders().value() ) {
+            xmlLiteParser->addWarning(generateErrors, S8Printf("FixHeaders exists in ACPI and ACPI/DSDT/Fixes with a different value. Using value of ACPI/FixHeaders. Delete FixHeaders from ACPI/DSDT/Fixes."));
+          }else{
+            xmlLiteParser->addWarning(generateErrors, S8Printf("FixHeaders exists in ACPI and ACPI/DSDT/Fixes with a different value. Using value of ACPI/DSDT/Fixes/FixHeaders. Delete FixHeaders from ACPI/DSDT/Fixes and set ACPI/FixHeaders to true."));
+          }
+        }
+      }
+    }
+    return true;
+  }
+
   const decltype(DisableDrivers)::ValueType& dgetDisabledDriverArray() const { return DisableDrivers.isDefined() ? DisableDrivers.value() : DisableDrivers.nullValue; };
   const decltype(SMBIOS)& getSMBIOS() const { return SMBIOS; };
 
diff --git a/rEFIt_UEFI/Settings/ConfigPlist/Config_ACPI.h b/rEFIt_UEFI/Settings/ConfigPlist/Config_ACPI.h
index f183844d7..0f3234bf6 100755
--- a/rEFIt_UEFI/Settings/ConfigPlist/Config_ACPI.h
+++ b/rEFIt_UEFI/Settings/ConfigPlist/Config_ACPI.h
@@ -170,6 +170,9 @@ public:
     if ( dgetResetAddr() == 0xCF9) return 0x06;
     return 0;
   }
+  
+  const decltype(FixHeaders)& getFixHeaders() const { return FixHeaders; };
+
   bool dgetSlpSmiEnable() const { return HaltEnabler.isDefined() ? HaltEnabler.value() : false; };
   bool dgetFixHeaders() const { return FixHeaders.isDefined() ? FixHeaders.value() : false; };
   bool dgetFixMCFG() const { return FixMCFG.isDefined() ? FixMCFG.value() : false; };
diff --git a/rEFIt_UEFI/Settings/ConfigPlist/Config_ACPI_DSDT.cpp b/rEFIt_UEFI/Settings/ConfigPlist/Config_ACPI_DSDT.cpp
index abfda3293..989f8299e 100644
--- a/rEFIt_UEFI/Settings/ConfigPlist/Config_ACPI_DSDT.cpp
+++ b/rEFIt_UEFI/Settings/ConfigPlist/Config_ACPI_DSDT.cpp
@@ -14,6 +14,11 @@
 
 XmlAbstractType& ConfigPlistClass::ACPI_Class::DSDT_Class::ACPI_DSDT_Fixes_Class::parseValueFromXmlLite(XmlLiteParser* xmlLiteParser, const XString8& xmlPath, bool generateErrors, const XmlParserPosition &keyPos, const char *keyValue, size_t keyValueLength, bool* keyFound)
 {
+#ifdef JIEF_DEBUG
+  if ( strncmp(keyValue, "FixHeaders", strlen("FixHeaders")) == 0 ) {
+    NOP;
+  }
+#endif
     for ( size_t idx = 0 ; idx < sizeof(ACPI_DSDT_Fixe_Array)/sizeof(ACPI_DSDT_Fixe_Array[0]) ; idx++ )
     {
       if ( ACPI_DSDT_Fixe_Array[idx].getNewName() && strnIsEqualIC(keyValue, keyValueLength, ACPI_DSDT_Fixe_Array[idx].getNewName()) ) {
@@ -27,6 +32,7 @@ XmlAbstractType& ConfigPlistClass::ACPI_Class::DSDT_Class::ACPI_DSDT_Fixes_Class
           ACPI_DSDT_Fixe_Array[idx].newEnabled.reset();
         }
         ACPI_DSDT_Fixe_Array[idx].newEnabled.parseFromXmlLite(xmlLiteParser, xmlPath, true);
+        ACPI_DSDT_Fixe_Array[idx].setDefined();
         *keyFound = true;
         return ACPI_DSDT_Fixe_Array[idx].newEnabled;
       }else
@@ -41,6 +47,7 @@ XmlAbstractType& ConfigPlistClass::ACPI_Class::DSDT_Class::ACPI_DSDT_Fixes_Class
           ACPI_DSDT_Fixe_Array[idx].oldEnabled.reset();
         }
         ACPI_DSDT_Fixe_Array[idx].oldEnabled.parseFromXmlLite(xmlLiteParser, xmlPath, true);
+        ACPI_DSDT_Fixe_Array[idx].setDefined();
         *keyFound = true;
         return ACPI_DSDT_Fixe_Array[idx].oldEnabled;
       }
diff --git a/rEFIt_UEFI/Settings/ConfigPlist/Config_ACPI_DSDT.h b/rEFIt_UEFI/Settings/ConfigPlist/Config_ACPI_DSDT.h
index fdaebb88f..9e3beada4 100644
--- a/rEFIt_UEFI/Settings/ConfigPlist/Config_ACPI_DSDT.h
+++ b/rEFIt_UEFI/Settings/ConfigPlist/Config_ACPI_DSDT.h
@@ -18,29 +18,33 @@ class DSDT_Class : public XmlDict
 public:
     class ACPI_DSDT_Fixes_Class;
 
-    class ACPI_DSDT_Fix : public XmlBool
+    class ACPI_DSDT_Fix : public XmlAbstractType
     {
-      using super = XmlBool;
+      using super = XmlAbstractType;
       friend class ACPI_DSDT_Fixes_Class;
     protected:
       const CHAR8* m_newName = NULL;
       const CHAR8* m_oldName = NULL;
       UINT32 m_bitData = 0;
-      XmlBool oldEnabled = XmlBool();
-      XmlBool newEnabled = XmlBool();
+      XmlBool oldEnabled {};
+      XmlBool newEnabled {};
 
     public:
-      ACPI_DSDT_Fix(const CHAR8* newName, const CHAR8* oldName, UINT32 bitData ) : XmlBool(), m_newName(newName), m_oldName(oldName), m_bitData(bitData) {};
+      constexpr ACPI_DSDT_Fix(const CHAR8* newName, const CHAR8* oldName, UINT32 bitData ) : m_newName(newName), m_oldName(oldName), m_bitData(bitData), oldEnabled(), newEnabled() {};
       ACPI_DSDT_Fix(const ACPI_DSDT_Fix&) { panic("copy ctor"); }; // can't do "=delete" because clang thinks it will be called at initialization "ACPI_DSDT_Fixes_Class Fixes = ACPI_DSDT_Fixes_Class();"
       ACPI_DSDT_Fix& operator = (const ACPI_DSDT_Fix&) = delete; // { panic("copy ctor"); }; // = delete;
 
+      virtual const char* getDescription() override { panic("not defined"); };
+      virtual bool isTheNextTag(XmlLiteParser* xmlLiteParser) override { panic("not defined"); };
+      virtual bool parseFromXmlLite(XmlLiteParser* xmlLiteParser, const XString8& xmlPath, bool generateErrors) override { panic("not defined"); };
+
       virtual void reset() override {
         super::reset();
         oldEnabled.reset();
         newEnabled.reset();
       };
 
-      const CHAR8* getNewName() const { return m_newName; }
+      constexpr const CHAR8* getNewName() const { return m_newName; }
       const CHAR8* getOldName() const { return m_oldName; }
       uint32_t getBitData() const { return m_bitData; }
 
@@ -57,7 +61,7 @@ public:
     class ACPI_DSDT_Fixes_Class : public XmlDict
     {
       using super = XmlDict;
-    protected:
+    public:
       ACPI_DSDT_Fix ACPI_DSDT_Fixe_Array[31] = { // CAREFUL not to declare too much
         { "AddDTGP_0001", "AddDTGP", FIX_DTGP },
         { "FixDarwin_0002", "FixDarwin", FIX_WARNING },
@@ -88,7 +92,7 @@ public:
         { "FIX_ACST_4000000", "FixACST", FIX_ACST },
         { "AddHDMI_8000000", "AddHDMI", FIX_HDMI },
         { "FixRegions_10000000", "FixRegions", FIX_REGIONS },
-        { "FixHeaders_20000000", "FixHeaders", FIX_HEADERS },
+        { "FixHeaders_20000000", "FixHeaders", FIX_HEADERS_DEPRECATED },
         { NULL, "FixMutex", FIX_MUTEX }
       };
 
@@ -99,9 +103,31 @@ public:
           ACPI_DSDT_Fixe_Array[idx].reset();
         }
       };
-    //  virtual bool parseFromXmlLite(XmlLiteParser* xmlLiteParser, const XString8& xmlPath, bool generateErrors) override;
+
       virtual XmlAbstractType& parseValueFromXmlLite(XmlLiteParser* xmlLiteParser, const XString8& xmlPath, bool generateErrors, const XmlParserPosition &keyPos, const char *keyValue, size_t keyValueLength, bool* keyFound) override;
       
+      virtual bool validate(XmlLiteParser* xmlLiteParser, const XString8& xmlPath, const XmlParserPosition& keyPos, bool generateErrors) override {
+        if ( !super::validate(xmlLiteParser, xmlPath, keyPos, generateErrors) ) return false;
+        if ( !isDefined() ) return true;
+//        if ( LString8(ACPI_DSDT_Fixe_Array[29].getNewName()) != "FixHeaders_20000000"_XS8 ) {
+//          log_technical_bug("ACPI_DSDT_Fixe_Array[29].getNewName() != \"FixHeaders_20000000\"");
+//          return true; // Bug in ACPI_DSDT_Fixe_Array. We don't want to reset all the values, so return true.
+//        }
+//        if ( ACPI_DSDT_Fixe_Array[29].isDefined() ) {
+//          xmlLiteParser->addWarning(generateErrors, S8Printf("FixHeaders is ACPI/DSDT in deprecated. Move it to ACPI."));
+//          return true; // return true because we handle this value anyway.
+//        }
+        return true;
+      }
+
+      const ACPI_DSDT_Fix& getFixHeaders() const {
+        // FixHeaders is bit 29, but that's a coincidence with the index of the array. ACPI_DSDT_Fixe_Array[FIX_HEADERS_DEPRECATED] would be wrong.
+        if ( LString8(ACPI_DSDT_Fixe_Array[29].getNewName()) != "FixHeaders_20000000"_XS8 ) {
+          log_technical_bug("ACPI_DSDT_Fixe_Array[29].getNewName() != \"FixHeaders_20000000\"");
+        }
+        return ACPI_DSDT_Fixe_Array[29];
+      }
+
       uint32_t dgetFixBiosDsdt() const {
         uint32_t FixDsdt = 0;
         for (size_t Index = 0; Index < sizeof(ACPI_DSDT_Fixe_Array)/sizeof(ACPI_DSDT_Fixe_Array[0]); Index++) {
@@ -109,6 +135,9 @@ public:
         }
         return FixDsdt;
       }
+      bool dgetFixHeaders() const {
+        return getFixHeaders().dgetEnabled();
+      }
     };
 
     class ACPI_DSDT_Patch_Class : public XmlDict
diff --git a/rEFIt_UEFI/cpp_lib/XmlLiteSimpleTypes.h b/rEFIt_UEFI/cpp_lib/XmlLiteSimpleTypes.h
index d23af9c67..5e6cf2adb 100755
--- a/rEFIt_UEFI/cpp_lib/XmlLiteSimpleTypes.h
+++ b/rEFIt_UEFI/cpp_lib/XmlLiteSimpleTypes.h
@@ -43,7 +43,7 @@ private:
     bool m_isDefined;
 
 public:
-  XmlAbstractType() : m_isDefined(false) {};
+  constexpr XmlAbstractType() : m_isDefined(false) {};
   virtual ~XmlAbstractType() {};
   
   virtual const char* getDescription() = 0;
@@ -98,8 +98,8 @@ public:
 protected:
   bool booll = false;
 public:
-  XmlStrictBool() : super() {};
-  XmlStrictBool(bool b) : booll(b) { /*if (b) b = 1;*/ }
+  constexpr XmlStrictBool() : super() {};
+  constexpr XmlStrictBool(bool b) : booll(b) { /*if (b) b = 1;*/ }
 
   virtual void reset() override { super::reset(); booll = 0; };
   virtual const char* getDescription() override { return "boolean"; };
diff --git a/rEFIt_UEFI/cpp_unit_test/xml_lite-test.cpp b/rEFIt_UEFI/cpp_unit_test/xml_lite-test.cpp
index 72be1c848..852035bf4 100755
--- a/rEFIt_UEFI/cpp_unit_test/xml_lite-test.cpp
+++ b/rEFIt_UEFI/cpp_unit_test/xml_lite-test.cpp
@@ -506,8 +506,8 @@ int documentation_test1()
   class MyDictClass : public XmlDict
   {
     public:
-      XmlBool aBool;
-      XmlInt32 anInt32;
+      XmlBool aBool {};
+      XmlInt32 anInt32 {};
 
       XmlDictField m_fields[2] = {
           {"KeyNameForBool", aBool},
@@ -548,8 +548,8 @@ int documentation_test2()
   class MyInsideDictClass : public XmlDict
   {
     public:
-      XmlBool aBool;
-      XmlInt32 anInt32;
+      XmlBool aBool {};
+      XmlInt32 anInt32 {};
 
       XmlDictField m_fields[2] = {
           {"KeyNameForBool", aBool},
@@ -561,7 +561,7 @@ int documentation_test2()
   class MyTopLevelDictClass : public ConfigPlistAbstractClass
   {
     public:
-      MyInsideDictClass inside1;
+      MyInsideDictClass inside1 {};
 
       XmlDictField m_fields[1] = {
           {"KeyNameForInsideDict", inside1},
@@ -600,8 +600,8 @@ int documentation_test3()
   class MyPlist : public ConfigPlistAbstractClass
   {
     public:
-      XmlBool aBool;
-      XmlInt32 anInt32;
+      XmlBool aBool {};
+      XmlInt32 anInt32 {};
       class CountClass : public XmlInt64
       {
         using super = XmlInt64;
@@ -678,9 +678,9 @@ int documentation_test4()
   {
       using super = XmlDict;
     public:
-      MyXmlType type;       // this is a subclass of XmlUInt8 that check that type is 1 or 2
-      MyXmlSubType subType; // this is a subclass of XmlUInt8 that check that subtype is 11 or 12
-      XmlString8 name;      // as many other field that there is in this dict
+      MyXmlType type {};       // this is a subclass of XmlUInt8 that check that type is 1 or 2
+      MyXmlSubType subType {}; // this is a subclass of XmlUInt8 that check that subtype is 11 or 12
+      XmlString8 name {};      // as many other field that there is in this dict
 
       XmlDictField m_fields[2] = {
           {"Type", type},
@@ -737,9 +737,9 @@ int documentation_test5()
   {
       using super = XmlDict;
     public:
-      XmlUInt8 type; // no validation except that the value is an unsigned 8 bits int
-      XmlUInt8 subType; // no validation except that the value is an unsigned 8 bits int
-      XmlString8 name;      // as many other field that there is in this dict
+      XmlUInt8 type {}; // no validation except that the value is an unsigned 8 bits int
+      XmlUInt8 subType {}; // no validation except that the value is an unsigned 8 bits int
+      XmlString8 name {};      // as many other field that there is in this dict
 
       XmlDictField m_fields[2] = {
           {"Type", type},
@@ -806,7 +806,7 @@ int documentation_test6()
   class MyDictClass : public ConfigPlistAbstractClass
   {
     public:
-      XmlArray<XmlBool> aBoolArray;
+      XmlArray<XmlBool> aBoolArray {};
 
       XmlDictField m_fields[1] = {
           {"KeyNameForBoolArray", aBoolArray},
@@ -844,7 +844,7 @@ int documentation_test7()
   class MyDictClass : public ConfigPlistAbstractClass
   {
     public:
-      XmlRepeatingDict<XmlAddKey<XmlKey, XmlInt32>> keyIntPairs;
+      XmlRepeatingDict<XmlAddKey<XmlKey, XmlInt32>> keyIntPairs {};
 
       XmlDictField m_fields[1] = {
           {"KeyNameForKeyIntPairs", keyIntPairs},
diff --git a/rEFIt_UEFI/include/DsdtFixList.h b/rEFIt_UEFI/include/DsdtFixList.h
index 70415e8f8..ea40c76f8 100644
--- a/rEFIt_UEFI/include/DsdtFixList.h
+++ b/rEFIt_UEFI/include/DsdtFixList.h
@@ -45,7 +45,7 @@
 #define FIX_ACST      bit(26)
 #define FIX_HDMI      bit(27)
 #define FIX_REGIONS   bit(28)
-#define FIX_HEADERS   bit(29)
+#define FIX_HEADERS_DEPRECATED   bit(29) // deprecated !!
 #define FIX_MUTEX     bit(30)
 
 
diff --git a/rEFIt_UEFI/refit/menu.cpp b/rEFIt_UEFI/refit/menu.cpp
index 02a73143c..cd405b725 100644
--- a/rEFIt_UEFI/refit/menu.cpp
+++ b/rEFIt_UEFI/refit/menu.cpp
@@ -448,6 +448,8 @@ void FillInputs(BOOLEAN New)
   InputItems[InputItemsCount++].SValue.SWPrintf("%04hhu", gSettings.Quirks.OcBooterQuirks.ProvideMaxSlide);
   InputItems[InputItemsCount].ItemType = BoolValue; //123
   InputItems[InputItemsCount++].BValue = gSettings.GUI.ProvideConsoleGop;
+  InputItems[InputItemsCount].ItemType = BoolValue; //124
+  InputItems[InputItemsCount++].BValue = gSettings.ACPI.FixHeaders;
 
 
 
@@ -1067,6 +1069,11 @@ void ApplyInputs(void)
     gSettings.GUI.ProvideConsoleGop = InputItems[i].BValue;
     DBG("applied ConsoleGopEnable=%s\n", gSettings.GUI.ProvideConsoleGop ? "Y" : "N" );
   }
+  i++; //124
+  if (InputItems[i].Valid) {
+    gSettings.ACPI.FixHeaders = InputItems[i].BValue;
+    DBG("applied gSettings.ACPI.FixHeaders=%s\n", gSettings.ACPI.FixHeaders ? "Y" : "N" );
+  }
 
 
   if (NeedSave) {
@@ -2064,7 +2071,7 @@ REFIT_ABSTRACT_MENU_ENTRY* SubMenuDsdtFix()
   SubScreen->AddMenuCheck("Rename ACST",  FIX_ACST, 67);
   SubScreen->AddMenuCheck("Add HDMI",     FIX_HDMI, 67);
   SubScreen->AddMenuCheck("Fix Regions",  FIX_REGIONS, 67);
-  SubScreen->AddMenuCheck("Fix Headers",  FIX_HEADERS, 67);
+//  SubScreen->AddMenuCheck("Fix Headers",  FIX_HEADERS_DEPRECATED, 67);
   SubScreen->AddMenuCheck("Fix Mutex",    FIX_MUTEX, 67);
 
   SubScreen->AddMenuEntry(&MenuEntryReturn, false);
@@ -2146,6 +2153,7 @@ REFIT_ABSTRACT_MENU_ENTRY* SubMenuACPI()
   SubScreen->AddMenuEntry(SubMenuDsdtFix(), true);
   SubScreen->AddMenuEntry(SubMenuDSDTPatches(), true);
   SubScreen->AddMenuItemInput(49, "Fix MCFG", FALSE);
+  SubScreen->AddMenuItemInput(124, "Fix Headers", gSettings.ACPI.FixHeaders);
 
   SubScreen->AddMenuEntry(&MenuEntryReturn, false);
   return Entry;