diff --git a/Clover.dsc b/Clover.dsc
index c38b12f68..e39f57fde 100644
--- a/Clover.dsc
+++ b/Clover.dsc
@@ -167,6 +167,7 @@
   # Our libs
   #
   MemLogLib|Library/MemLogLibDefault/MemLogLibDefault.inf
+
   VideoBiosPatchLib|Library/VideoBiosPatchLib/VideoBiosPatchLib.inf
   WaveLib|Library/WaveLib/WaveLib.inf
   HdaDevicesLib|Library/HdaDevicesLib/HdaDevicesLib.inf
diff --git a/Library/MemLogLibDefault/MemLogLib.c b/Library/MemLogLibDefault/MemLogLib.c
index 80eb706bf..eef1f2d4f 100644
--- a/Library/MemLogLibDefault/MemLogLib.c
+++ b/Library/MemLogLibDefault/MemLogLib.c
@@ -541,20 +541,25 @@ MemLogfVA (
 #else
   vprintf_with_callback_timestamp_emitcr(Format, Marker, transmitS8Printf, NULL, &printfNewline, Timing, 1);
 #endif
+  
+#ifdef DEBUG_ON_SERIAL_PORT
   size_t DataWritten = mMemLog->Cursor - mMemLog->Buffer - LastMessage;
-
+#endif
   //
   // Check driver debug mask value and global mask
   //
-  if ((DebugMode & GetDebugPrintErrorLevel ()) == 0) {
-    return;
-  }
+//  DebugMode is not same as PrintErrorLevel
+//  if ((DebugMode & GetDebugPrintErrorLevel ()) == 0) {
+//    return;
+//  }
   //
   // Write to standard debug device also
   //
   // Jief : use SerialPortWrite instead of DebugPrint to avoid 256 chars message length limitation.
   // Jief : do this before CallBack to preserve order of messages sent from inside callback.
+#ifdef DEBUG_ON_SERIAL_PORT
   SerialPortWrite((UINT8*)(mMemLog->Buffer + LastMessage), DataWritten);
+#endif
 //  DebugPrint(DEBUG_INFO, "%a", LastMessage);
 
   //
diff --git a/rEFIt_UEFI/gui/REFIT_MENU_SCREEN.cpp b/rEFIt_UEFI/gui/REFIT_MENU_SCREEN.cpp
index 26cc3e014..234728a7c 100644
--- a/rEFIt_UEFI/gui/REFIT_MENU_SCREEN.cpp
+++ b/rEFIt_UEFI/gui/REFIT_MENU_SCREEN.cpp
@@ -961,17 +961,22 @@ UINTN REFIT_MENU_SCREEN::RunGenericMenu(IN OUT INTN *DefaultEntryIndex, OUT REFI
         break;
 */
       case SCAN_F7:
+//      DBG("scan_f7\n");
+        if (AudioList.isEmpty()) break;
+//      DBG("not empty\n");
         if (OldChosenAudio >= AudioList.size()) {
               OldChosenAudio = 0; //security correction
         }
-        Status = gBS->HandleProtocol(AudioList[OldChosenAudio].Handle, &gEfiAudioIoProtocolGuid, (void**)&AudioIo);
-			  DBG("open %llu audio handle status=%s\n", OldChosenAudio, efiStrError(Status));
-        if (!EFI_ERROR(Status)) {
-          StartupSoundPlay(&self.getCloverDir(), NULL); //play embedded sound
-        }
+//       DBG("OldChosenAudio=%llu\n", OldChosenAudio);
+          Status = gBS->HandleProtocol(AudioList[OldChosenAudio].Handle, &gEfiAudioIoProtocolGuid, (void**)&AudioIo);
+          DBG("open %llu audio handle status=%s\n", OldChosenAudio, efiStrError(Status));
+          if (!EFI_ERROR(Status)) {
+            StartupSoundPlay(&self.getCloverDir(), NULL); //play embedded sound
+          }
+        
         break;
       case SCAN_F8:
- //       testSVG();
+        testSVG();
         SaveHdaDumpBin();
         SaveHdaDumpTxt();
         break;
diff --git a/rEFIt_UEFI/include/Efi.h b/rEFIt_UEFI/include/Efi.h
index 58e9de281..f7d5cfadb 100644
--- a/rEFIt_UEFI/include/Efi.h
+++ b/rEFIt_UEFI/include/Efi.h
@@ -35,6 +35,7 @@ extern "C" {
 #include <Library/BaseLib.h>
 #include <Library/BaseMemoryLib.h>
 #include <Library/DebugLib.h>
+#include <Library/DebugPrintErrorLevelLib.h>
 #include <Library/DevicePathLib.h>
 #include <Uefi/UefiInternalFormRepresentation.h>
 #include <Protocol/SimpleTextIn.h>
diff --git a/rEFIt_UEFI/refit/main.cpp b/rEFIt_UEFI/refit/main.cpp
index 166b8d2af..ddeae4a53 100644
--- a/rEFIt_UEFI/refit/main.cpp
+++ b/rEFIt_UEFI/refit/main.cpp
@@ -2808,8 +2808,11 @@ RefitMain (IN EFI_HANDLE           ImageHandle,
 //      XString8 msg = S8Printf("CloverX64 : Image base = 0x%llX\n", (uintptr_t)LoadedImage->ImageBase); // do not change, it's used by grep to feed the debugger
 //      SerialPortWrite((UINT8*)msg.c_str(), msg.length());
 //    }
-    if ( !EFI_ERROR(Status) ) DBG("CloverX64 : Image base = 0x%llX\n", (uintptr_t)LoadedImage->ImageBase); // do not change, it's used by grep to feed the debugger
-
+    if ( !EFI_ERROR(Status) ) {
+      DBG("CloverX64 : Image base = 0x%llX\n", (uintptr_t)LoadedImage->ImageBase); // do not change, it's used by grep to feed the debugger
+    } else {
+      DBG("CloverX64 : Image base = 0\n");
+    }
 #ifdef JIEF_DEBUG
     gBS->Stall(2500000); // to give time to gdb to connect
 //  PauseForKey(L"press\n");
@@ -3144,7 +3147,7 @@ RefitMain (IN EFI_HANDLE           ImageHandle,
   if (gCPUStructure.TSCCalibr > 200000000ULL) {  //200MHz
     gCPUStructure.TSCFrequency = gCPUStructure.TSCCalibr;
   }
-
+  DBG("print error level mask = %x\n", GetDebugPrintErrorLevel() );
   gCPUStructure.CPUFrequency = gCPUStructure.TSCFrequency;
   gCPUStructure.FSBFrequency = DivU64x32(MultU64x32(gCPUStructure.CPUFrequency, 10),
                                          (gCPUStructure.MaxRatio == 0) ? 1 : gCPUStructure.MaxRatio);