--- source/d_scache.cpp	2006-08-11 14:52:55.000000000 +0200
+++ source/d_scache.cpp	2006-08-11 14:53:38.000000000 +0200
@@ -199,7 +199,7 @@ 
 	if ((height < 0) || (height > 256))
 		Sys_Error("D_SCAlloc: bad cache height %d\n", height);
 
-	size = (int)&((surfcache_t *)0)->data[size];
+	size = &((surfcache_t *)0)->data[size] - (vuint8*)0;
 	size = (size + 3) & ~3;
 	if (size > sc_size)
 		Sys_Error("D_SCAlloc: %i > cache size", size);
--- source/sv_acs.cpp	2006-08-11 14:53:01.000000000 +0200
+++ source/sv_acs.cpp	2006-08-11 14:55:46.000000000 +0200
@@ -3380,9 +3380,9 @@ 
 
 		ACSVM_CASE(PCD_CaseGotoSorted)
 			//	The count and jump table are 4-byte aligned.
-			if ((int)ip & 3)
+			if (ActiveObject->PtrToOffset(ip) & 3)
 			{
-				ip += 4 - ((int)ip & 3);
+				ip += 4 - (ActiveObject->PtrToOffset(ip) & 3);
 			}
 			{
 				int numcases = READ_INT32(ip);