--- wterm-6.2.9/src/main.c	2001-08-17 06:47:41.000000000 +0200
+++ wterm-6.2.9.new/src/main.c	2008-05-03 14:44:43.000000000 +0200
@@ -1444,14 +1444,13 @@
 /*
  * Open display, get options/resources and create the window
  */
-    if ((display_name = getenv("DISPLAY")) == NULL)
-	display_name = ":0";
-
     get_options(argc, argv);
 
     Xdisplay = XOpenDisplay(display_name);
     if (!Xdisplay) {
-	print_error("can't open display %s", display_name);
+	print_error("can't open display %s", display_name?display_name:
+			getenv("DISPLAY")?getenv("DISPLAY"):
+			"as no -d given and DISPLAY not set");
 	exit(EXIT_FAILURE);
     }
     extract_resources(Xdisplay, rs_name);