diff --git a/rEFIt_UEFI/Platform/FixBiosDsdt.cpp b/rEFIt_UEFI/Platform/FixBiosDsdt.cpp
index 2be789d3f..9efe27200 100755
--- a/rEFIt_UEFI/Platform/FixBiosDsdt.cpp
+++ b/rEFIt_UEFI/Platform/FixBiosDsdt.cpp
@@ -2961,8 +2961,8 @@ UINT32 FIXNetwork (UINT8 *dsdt, UINT32 len, UINT32 card)
   if (gSettings.FakeLAN) {
     FakeID = gSettings.FakeLAN >> 16;
     FakeVen = gSettings.FakeLAN & 0xFFFF;
-    snprintf(NameCard, 32, "pci%04X,%04X", FakeVen, FakeID);
-    LowCase(NameCard);
+    snprintf(NameCard, 32, "pci%04x,%04x", FakeVen, FakeID);
+//    LowCase(NameCard);
     Netmodel[card] = get_net_model((FakeVen << 16) + FakeID);
   }
 
@@ -3165,7 +3165,7 @@ UINT32 FIXAirport (UINT8 *dsdt, UINT32 len)
     FakeID = gSettings.FakeWIFI >> 16;
     FakeVen = gSettings.FakeWIFI & 0xFFFF;
     snprintf(NameCard, 32, "pci%04x,%04x", FakeVen, FakeID);
-    LowCase(NameCard);
+ //   LowCase(NameCard);
   }
 
   PCIADR = GetPciDevice(dsdt, len);
diff --git a/rEFIt_UEFI/Platform/Settings.cpp b/rEFIt_UEFI/Platform/Settings.cpp
index fb08bf51f..cbef3fcac 100644
--- a/rEFIt_UEFI/Platform/Settings.cpp
+++ b/rEFIt_UEFI/Platform/Settings.cpp
@@ -6855,8 +6855,8 @@ GetDevices ()
 
             default:
               gfx->Vendor = Unknown;
-              snprintf (gfx->Model, 64, "pci%04X,%04X", Pci.Hdr.VendorId, Pci.Hdr.DeviceId);
-              LowCase(gfx->Model);
+              snprintf (gfx->Model, 64, "pci%04x,%04x", Pci.Hdr.VendorId, Pci.Hdr.DeviceId);
+     //         LowCase(gfx->Model);
               gfx->Ports  = 1;
               gfx->Connectors = (1 << NGFX);
               gfx->ConnChanged = FALSE;
diff --git a/rEFIt_UEFI/Platform/ati.cpp b/rEFIt_UEFI/Platform/ati.cpp
index d416b421c..8bde0cdcb 100644
--- a/rEFIt_UEFI/Platform/ati.cpp
+++ b/rEFIt_UEFI/Platform/ati.cpp
@@ -1322,8 +1322,8 @@ BOOLEAN get_name_pci_val(value_t *val, INTN index, BOOLEAN Sier)
     return FALSE;
   }
 
-  snprintf(pciName, 15, "pci1002,%04X", gSettings.FakeATI >> 16);
-  LowCase(pciName);
+  snprintf(pciName, 15, "pci1002,%04x", gSettings.FakeATI >> 16);
+//  LowCase(pciName);
   val->type = kStr;
   val->size = 13;
   val->data = (UINT8 *)pciName;
@@ -2114,7 +2114,7 @@ BOOLEAN setup_ati_devprop(LOADER_ENTRY *Entry, pci_dt_t *ati_dev)
     devprop_add_value(card->device, "device-id", (UINT8*)&FakeID, 4);
     devprop_add_value(card->device, "ATY,DeviceID", (UINT8*)&FakeID, 2);
     snprintf(compatible, 64, "pci1002,%04x", FakeID);
-    LowCase(compatible);
+//    LowCase(compatible);
     devprop_add_value(card->device, "@0,compatible", (UINT8*)&compatible[0], 12);
     FakeID = gSettings.FakeATI & 0xFFFF;
     devprop_add_value(card->device, "vendor-id", (UINT8*)&FakeID, 4);
diff --git a/rEFIt_UEFI/Platform/device_inject.cpp b/rEFIt_UEFI/Platform/device_inject.cpp
index da1395ee6..fc3ffb812 100644
--- a/rEFIt_UEFI/Platform/device_inject.cpp
+++ b/rEFIt_UEFI/Platform/device_inject.cpp
@@ -408,8 +408,8 @@ BOOLEAN set_eth_props(pci_dt_t *eth_dev)
   if (gSettings.FakeLAN) {
     UINT32 FakeID = gSettings.FakeLAN >> 16;
     devprop_add_value(device, "device-id", (UINT8*)&FakeID, 4);
-    snprintf(compatible, 64, "pci%04X,%04X", (gSettings.FakeLAN & 0xFFFF), FakeID);
-    LowCase(compatible);
+    snprintf(compatible, 64, "pci%04x,%04x", (gSettings.FakeLAN & 0xFFFF), FakeID);
+//    LowCase(compatible);
     devprop_add_value(device, "compatible", (UINT8*)&compatible[0], 12);
     FakeID = gSettings.FakeLAN & 0xFFFF;
     devprop_add_value(device, "vendor-id", (UINT8*)&FakeID, 4);
diff --git a/rEFIt_UEFI/refit/IO.cpp b/rEFIt_UEFI/refit/IO.cpp
index bcf7522de..edea7ef2c 100644
--- a/rEFIt_UEFI/refit/IO.cpp
+++ b/rEFIt_UEFI/refit/IO.cpp
@@ -1838,7 +1838,7 @@ LibGetPageBreak (
   return mPrintMode.PageBreak;
 }
 */
-//
+/*
 VOID LowCase (IN OUT CHAR8 *Str)
 {
   while (*Str) {
@@ -1848,7 +1848,7 @@ VOID LowCase (IN OUT CHAR8 *Str)
     Str++;
   }
 }
-
+*/
 
 UINT8 hexstrtouint8 (CHAR8* buf)
 {
diff --git a/rEFIt_UEFI/refit/IO.h b/rEFIt_UEFI/refit/IO.h
index a565ea239..b08c3b119 100644
--- a/rEFIt_UEFI/refit/IO.h
+++ b/rEFIt_UEFI/refit/IO.h
@@ -289,7 +289,7 @@ WaitFor2EventWithTsc (
 EFI_STATUS
 WaitForInputEventPoll(REFIT_MENU_SCREEN *Screen, UINTN TimeoutDefault);
 
-VOID        LowCase (IN OUT CHAR8 *Str);
+//VOID        LowCase (IN OUT CHAR8 *Str);
 UINT32      hex2bin(IN CHAR8 *hex, OUT UINT8 *bin, UINT32 len);
 BOOLEAN     IsHexDigit (CHAR8 c);
 UINT8       hexstrtouint8 (CHAR8* buf); //one or two hex letters to one byte
diff --git a/rEFIt_UEFI/refit/main.cpp b/rEFIt_UEFI/refit/main.cpp
index 0fb9e6f62..b038d19d8 100644
--- a/rEFIt_UEFI/refit/main.cpp
+++ b/rEFIt_UEFI/refit/main.cpp
@@ -2225,8 +2225,22 @@ RefitMain (IN EFI_HANDLE           ImageHandle,
 #if 0
   //testing place
   {
-    CHAR16 *aaa = L"12345";
-    DBG(" string %ls, size=%d, len=%d sizeof=%d\n", aaa, StrSize(aaa), StrLen(aaa), sizeof(aaa));
+    const CHAR16 *aaa = L"12345  ";
+    const CHAR8 *bbb = "12345  ";
+    DBG(" string %ls, size=%lld, len=%lld sizeof=%ld iStrLen=%lld\n", aaa, StrSize(aaa), StrLen(aaa), sizeof(aaa), iStrLen(bbb, 10));
+
+    CHAR8           compatible[64];
+    UINT32 FakeLAN = 0x0030168c;
+    UINT32 FakeID = FakeLAN >> 16;
+    UINTN FakeVendor = FakeLAN & 0xFFFF;
+    snprintf(compatible, 64, "pci%04llx,%04x", FakeVendor, FakeID);
+    DBG(" FakeLAN = 0x%x\n", FakeLAN);
+    DBG(" Compatible=%s strlen=%ld sizeof=%ld iStrLen=%lld\n", compatible,
+        strlen(compatible), sizeof(compatible), iStrLen(compatible, 64));
+//    LowCase(compatible);
+//    DBG(" Low Compatible=%s strlen=%ld sizeof=%ld iStrLen=%lld\n", compatible,
+//        strlen(compatible), sizeof(compatible), iStrLen(compatible, 64));
+
   }
 #endif
   if (!GlobalConfig.FastBoot) {