--- appFrame/appFontX11.c.orig	2011-08-19 20:37:58.189966635 +1000
+++ appFrame/appFontX11.c	2011-08-19 20:40:02.559965643 +1000
@@ -947,7 +947,9 @@ static int appXfontHasCode(	const XFontS
     if  ( xfs->all_chars_exist )
 	{ return 1;	}
 
+	if (xfs->per_char)
     return xfs->per_char[offset].width > 0;
+    else return 0;
     }
 
 /************************************************************************/