--- a/viewport.c	Sun Oct 02 12:31:00 2005 +0000
+++ b/viewport.c	Sun Oct 02 22:39:56 2005 +0000
@@ -2229,7 +2229,7 @@
 		VpStartPreSizing();
 
 	if ( (int)icon < 0)
-		SetAnimatedMouseCursor(_animcursors[~icon]);
+		SetAnimatedMouseCursor(_animcursors[~(int32)icon]);
 	else
 		SetMouseCursor(icon);
 }