Index: display.c
===================================================================
--- win32ss/user/user32/misc/display.c	(revision 74351)
+++ win32ss/user/user32/misc/display.c	(working copy)
@@ -288,7 +288,7 @@
                 lpDevMode->dmDriverExtra = lpExtendedDevMode->dmDriverExtra;
 
             /* Copy extra data */
-            RtlCopyMemory(lpDevMode + OldSize, lpExtendedDevMode + 1, lpDevMode->dmDriverExtra);
+            RtlCopyMemory((PUCHAR)lpDevMode + OldSize, lpExtendedDevMode + 1, lpDevMode->dmDriverExtra);
         }
 
         /* If the size of source structure is less, than used, we clean unsupported flags */
@@ -380,7 +380,7 @@
                 lpDevMode->dmDriverExtra = lpExtendedDevMode->dmDriverExtra;
 
             /* Copy extra data */
-            RtlCopyMemory(lpDevMode + OldSize, lpExtendedDevMode + 1, lpDevMode->dmDriverExtra);
+            RtlCopyMemory((PUCHAR)lpDevMode + OldSize, lpExtendedDevMode + 1, lpDevMode->dmDriverExtra);
         }
 
         /* If the size of source structure is less, than used, we clean unsupported flags */