--- Sources/Display/display_mode.cpp.original	2006-03-26 21:06:33.000000000 +0200
+++ Sources/Display/display_mode.cpp	2006-03-26 21:08:30.000000000 +0200
@@ -117,6 +117,8 @@
 
 				for (int i = 0; i < nmodes; i++)
 				{
+					if (!vmodes[i]->htotal || !vmodes[i]->vtotal)
+						continue;
 					if ((vmodes[i]->flags) & V_DBLSCAN)
 						refresh_rate = vmodes[i]->dotclock * 500 / (vmodes[i]->htotal * vmodes[i]->vtotal);
 					else