--- sourceforge.net/trunk/rdesktop/cache.c	2003/12/11 17:20:01	562
+++ sourceforge.net/trunk/rdesktop/cache.c	2003/12/24 17:23:03	563
@@ -162,6 +162,9 @@
 {
 	int length = cx * cy * bytes_per_pixel;
 
+	if (offset > sizeof(g_deskcache))
+		offset = 0;
+
 	if ((offset + length) <= sizeof(g_deskcache))
 	{
 		return &g_deskcache[offset];
@@ -177,6 +180,9 @@
 {
 	int length = cx * cy * bytes_per_pixel;
 
+	if (offset > sizeof(g_deskcache))
+		offset = 0;
+
 	if ((offset + length) <= sizeof(g_deskcache))
 	{
 		cx *= bytes_per_pixel;