Index: code/client/cl_keys.c
===================================================================
--- code/client/cl_keys.c	(revision 908)
+++ code/client/cl_keys.c	(working copy)
@@ -701,7 +701,7 @@
 	}
 
 	// check for hex code
-	if ( str[0] == '0' && str[1] == 'x' && strlen( str ) == 4) {
+	if ( str[0] == '0' && (tolower(str[1]) == 'x') && strlen( str ) == 4) {
 		int		n1, n2;
 		
 		n1 = str[2];