Patch by Steven Edwards, discussed on ros-kernel.
Change a UNIMPLEMENTED to a DPRINT so we dont hang
After doing Help -> About -> About OS in Explorer.

reactos/subsys/win32k/objects

diff -u -r1.54 -r1.54.2.1
--- bitmaps.c	12 Feb 2004 21:50:19 -0000	1.54
+++ bitmaps.c	26 Feb 2004 12:34:27 -0000	1.54.2.1
@@ -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: bitmaps.c,v 1.54 2004/02/12 21:50:19 navaraf Exp $ */

+/* $Id: bitmaps.c,v 1.54.2.1 2004/02/26 12:34:27 gvg Exp $ */

 #undef WIN32_LEAN_AND_MEAN
 #include <windows.h>
 #include <stdlib.h>

@@ -252,7 +252,7 @@

   }
   if (Planes != 1)
   {

-    UNIMPLEMENTED;

+    DPRINT1("NtGdiCreateBitmap - UNIMPLEMENTED\n");;

     return  0;
   }
   if (Height < 0)