Index: xorg-server-1.3.0.0/exa/exa_offscreen.c
===================================================================
--- xorg-server-1.3.0.0.orig/exa/exa_offscreen.c	2007-02-16 17:03:12.000000000 +0100
+++ xorg-server-1.3.0.0/exa/exa_offscreen.c	2007-05-23 21:20:31.000000000 +0200
@@ -427,7 +427,7 @@
     ExaScreenPriv (pPixmap->drawable.pScreen);
     static int iter = 0;
 
-    if (!pExaPixmap->area)
+    if (!pExaPixmap || !pExaPixmap->area)
 	return;
 
     /* The numbers here are arbitrary.  We may want to tune these. */