diff --git a/reactos/subsys/win32k/dib/dib16bpp.c b/reactos/subsys/win32k/dib/dib16bpp.c
index 60849250f4c..c5503d55de0 100644
--- a/reactos/subsys/win32k/dib/dib16bpp.c
+++ b/reactos/subsys/win32k/dib/dib16bpp.c
@@ -16,7 +16,7 @@
  *  along with this program; if not, write to the Free Software
  *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  */
-/* $Id: dib16bpp.c,v 1.24 2004/04/06 21:53:48 weiden Exp $ */
+/* $Id: dib16bpp.c,v 1.25 2004/04/06 23:05:36 weiden Exp $ */
 #undef WIN32_LEAN_AND_MEAN
 #include <windows.h>
 #include <stdlib.h>
@@ -607,8 +607,7 @@ DIB_16BPP_TransparentBlt(SURFOBJ *DestSurf, SURFOBJ *SourceSurf,
                          RECTL*  DestRect,  POINTL  *SourcePoint,
                          XLATEOBJ *ColorTranslation, ULONG iTransColor)
 {
-  ULONG X, Y, SourceX, SourceY, Source, wd, Dest;
-  LONG RoundedRight;
+  ULONG RoundedRight, X, Y, SourceX, SourceY, Source, wd, Dest;
   ULONG *DestBits;
   
   RoundedRight = DestRect->right - ((DestRect->right - DestRect->left) & 0x1);
@@ -616,7 +615,7 @@ DIB_16BPP_TransparentBlt(SURFOBJ *DestSurf, SURFOBJ *SourceSurf,
   DestBits = (ULONG*)(DestSurf->pvScan0 +
                       (DestRect->left << 1) +
                       DestRect->top * DestSurf->lDelta);
-  wd = ((DestRect->right - DestRect->left) << 1) - DestSurf->lDelta;
+  wd = DestSurf->lDelta - ((DestRect->right - DestRect->left) << 1);
   
   for(Y = DestRect->top; Y < DestRect->bottom; Y++)
   {
@@ -653,7 +652,7 @@ DIB_16BPP_TransparentBlt(SURFOBJ *DestSurf, SURFOBJ *SourceSurf,
       DestBits = (PULONG)((ULONG_PTR)DestBits + 2);
     }
     SourceY++;
-    DestBits = (ULONG*)((ULONG_PTR)DestBits - wd);
+    DestBits = (ULONG*)((ULONG_PTR)DestBits + wd);
   }
   
   return TRUE;
diff --git a/reactos/subsys/win32k/dib/dib24bpp.c b/reactos/subsys/win32k/dib/dib24bpp.c
index e696ad73ed8..8bcc084ee60 100644
--- a/reactos/subsys/win32k/dib/dib24bpp.c
+++ b/reactos/subsys/win32k/dib/dib24bpp.c
@@ -16,7 +16,7 @@
  *  along with this program; if not, write to the Free Software
  *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  */
-/* $Id: dib24bpp.c,v 1.20 2004/04/06 21:53:48 weiden Exp $ */
+/* $Id: dib24bpp.c,v 1.21 2004/04/06 23:05:36 weiden Exp $ */
 #undef WIN32_LEAN_AND_MEAN
 #include <windows.h>
 #include <stdlib.h>
@@ -374,7 +374,7 @@ DIB_24BPP_TransparentBlt(SURFOBJ *DestSurf, SURFOBJ *SourceSurf,
   DestBits = (BYTE*)(DestSurf->pvScan0 +
                       (DestRect->left << 2) +
                       DestRect->top * DestSurf->lDelta);
-  wd = ((DestRect->right - DestRect->left) << 2) - DestSurf->lDelta;
+  wd = DestSurf->lDelta - ((DestRect->right - DestRect->left) << 2);
   
   for(Y = DestRect->top; Y < DestRect->bottom; Y++)
   {
@@ -391,7 +391,7 @@ DIB_24BPP_TransparentBlt(SURFOBJ *DestSurf, SURFOBJ *SourceSurf,
     }
     
     SourceY++;
-    DestBits = (BYTE*)((ULONG_PTR)DestBits - wd);
+    DestBits = (BYTE*)((ULONG_PTR)DestBits + wd);
   }
   
   return TRUE;
diff --git a/reactos/subsys/win32k/dib/dib32bpp.c b/reactos/subsys/win32k/dib/dib32bpp.c
index 4206bed8df8..fa9fbbc79c1 100644
--- a/reactos/subsys/win32k/dib/dib32bpp.c
+++ b/reactos/subsys/win32k/dib/dib32bpp.c
@@ -16,7 +16,7 @@
  *  along with this program; if not, write to the Free Software
  *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  */
-/* $Id: dib32bpp.c,v 1.20 2004/04/06 21:53:48 weiden Exp $ */
+/* $Id: dib32bpp.c,v 1.21 2004/04/06 23:05:36 weiden Exp $ */
 #undef WIN32_LEAN_AND_MEAN
 #include <windows.h>
 #include <stdlib.h>
@@ -579,7 +579,7 @@ DIB_32BPP_TransparentBlt(SURFOBJ *DestSurf, SURFOBJ *SourceSurf,
   DestBits = (ULONG*)(DestSurf->pvScan0 +
                       (DestRect->left << 2) +
                       DestRect->top * DestSurf->lDelta);
-  wd = ((DestRect->right - DestRect->left) << 2) - DestSurf->lDelta;
+  wd = DestSurf->lDelta - ((DestRect->right - DestRect->left) << 2);
   
   for(Y = DestRect->top; Y < DestRect->bottom; Y++)
   {
@@ -594,7 +594,7 @@ DIB_32BPP_TransparentBlt(SURFOBJ *DestSurf, SURFOBJ *SourceSurf,
     }
     
     SourceY++;
-    DestBits = (ULONG*)((ULONG_PTR)DestBits - wd);
+    DestBits = (ULONG*)((ULONG_PTR)DestBits + wd);
   }
   
   return TRUE;
diff --git a/reactos/subsys/win32k/dib/dib8bpp.c b/reactos/subsys/win32k/dib/dib8bpp.c
index 93d73aa5321..d498c6c22c2 100644
--- a/reactos/subsys/win32k/dib/dib8bpp.c
+++ b/reactos/subsys/win32k/dib/dib8bpp.c
@@ -16,7 +16,7 @@
  *  along with this program; if not, write to the Free Software
  *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  */
-/* $Id: dib8bpp.c,v 1.18 2004/04/06 17:54:32 weiden Exp $ */
+/* $Id: dib8bpp.c,v 1.19 2004/04/06 23:05:36 weiden Exp $ */
 #undef WIN32_LEAN_AND_MEAN
 #include <windows.h>
 #include <stdlib.h>
@@ -568,7 +568,71 @@ DIB_8BPP_TransparentBlt(SURFOBJ *DestSurf, SURFOBJ *SourceSurf,
                         RECTL*  DestRect,  POINTL  *SourcePoint,
                         XLATEOBJ *ColorTranslation, ULONG iTransColor)
 {
-  return FALSE;
+  ULONG RoundedRight, X, Y, SourceX, SourceY, Source, wd, Dest;
+  ULONG *DestBits;
+  
+  RoundedRight = DestRect->right - ((DestRect->right - DestRect->left) & 0x3);
+  SourceY = SourcePoint->y;
+  DestBits = (ULONG*)(DestSurf->pvScan0 + DestRect->left +
+                      (DestRect->top * DestSurf->lDelta));
+  wd = DestSurf->lDelta - (DestRect->right - DestRect->left);
+  
+  for(Y = DestRect->top; Y < DestRect->bottom; Y++)
+  {
+    DestBits = (ULONG*)(DestSurf->pvScan0 + DestRect->left +
+                        (Y * DestSurf->lDelta));
+    SourceX = SourcePoint->x;
+    for (X = DestRect->left; X < RoundedRight; X += 4, DestBits++)
+    {
+      Dest = *DestBits;
+      
+      Source = DIB_GetSourceIndex(SourceSurf, SourceGDI, SourceX++, SourceY);
+      if(Source != iTransColor)
+      {
+        Dest &= 0xFFFFFF00;
+        Dest |= (XLATEOBJ_iXlate(ColorTranslation, Source) & 0xFF);
+      }
+
+      Source = DIB_GetSourceIndex(SourceSurf, SourceGDI, SourceX++, SourceY);
+      if(Source != iTransColor)
+      {
+        Dest &= 0xFFFF00FF;
+        Dest |= ((XLATEOBJ_iXlate(ColorTranslation, Source) << 8) & 0xFF00);
+      }
+      
+      Source = DIB_GetSourceIndex(SourceSurf, SourceGDI, SourceX++, SourceY);
+      if(Source != iTransColor)
+      {
+        Dest &= 0xFF00FFFF;
+        Dest |= ((XLATEOBJ_iXlate(ColorTranslation, Source) << 16) & 0xFF0000);
+      }
+      
+      Source = DIB_GetSourceIndex(SourceSurf, SourceGDI, SourceX++, SourceY);
+      if(Source != iTransColor)
+      {
+        Dest &= 0x00FFFFFF;
+        Dest |= ((XLATEOBJ_iXlate(ColorTranslation, Source) << 24) & 0xFF000000);
+      }
+
+      *DestBits = Dest;
+    }
+    
+    if(X < DestRect->right)
+    {
+      for (; X < DestRect->right; X++)
+      {
+        Source = DIB_GetSourceIndex(SourceSurf, SourceGDI, SourceX++, SourceY);
+        if(Source != iTransColor)
+        {
+          *((BYTE*)DestBits) = (BYTE)(XLATEOBJ_iXlate(ColorTranslation, Source) & 0xFF);
+        }
+        DestBits = (PULONG)((ULONG_PTR)DestBits + 1);
+      }
+    }
+    SourceY++;
+  }
+  
+  return TRUE;
 }
 
 /* EOF */