Index: reactos/win32ss/gdi/dib/dib24bpp.c
===================================================================
--- reactos/win32ss/gdi/dib/dib24bpp.c	(revision 75147)
+++ reactos/win32ss/gdi/dib/dib24bpp.c	(working copy)
@@ -429,7 +429,7 @@
           SourceSurf->sizlBitmap.cx > SourceX && SourceSurf->sizlBitmap.cy > SourceY)
       {
         Source = DIB_GetSourceIndex(SourceSurf, SourceX, SourceY);
-        if(Source != iTransColor)
+        if((Source & 0x00FFFFFF) != iTransColor)
         {
           Dest = XLATEOBJ_iXlate(ColorTranslation, Source) & 0xFFFFFF;
            *(PUSHORT)(DestBits) = Dest & 0xFFFF;
Index: reactos/win32ss/gdi/dib/dib32bpp.c
===================================================================
--- reactos/win32ss/gdi/dib/dib32bpp.c	(revision 75147)
+++ reactos/win32ss/gdi/dib/dib32bpp.c	(working copy)
@@ -312,7 +312,7 @@
         SourceSurf->sizlBitmap.cx > SourceX && SourceSurf->sizlBitmap.cy > SourceY)
       {
         Source = DIB_GetSourceIndex(SourceSurf, SourceX, SourceY);
-        if (Source != iTransColor)
+        if ((Source & 0x00FFFFFF) != iTransColor)
         {
           *DestBits = XLATEOBJ_iXlate(ColorTranslation, Source);
         }
Index: reactos/win32ss/gdi/ntgdi/bitblt.c
===================================================================
--- reactos/win32ss/gdi/ntgdi/bitblt.c	(revision 75147)
+++ reactos/win32ss/gdi/ntgdi/bitblt.c	(working copy)
@@ -219,6 +219,8 @@
     BOOL Ret = FALSE;
     EXLATEOBJ exlo;
 
+    TransColor &= 0x00FFFFFF;
+
     if ((hdcDst == NULL) || (hdcSrc == NULL))
     {
         EngSetLastError(ERROR_INVALID_PARAMETER);