diff -ru greq-0.9.4.orig/src/greq.c greq-0.9.4/src/greq.c
--- greq-0.9.4.orig/src/greq.c	2002-04-19 21:44:02.000000000 +0300
+++ greq-0.9.4/src/greq.c	2010-11-07 15:57:14.393333895 +0200
@@ -52,12 +52,15 @@
    if (!win) quit (RETURN_ERROR_NOMEM);
    gtk_signal_connect ((GtkObject *)win, "delete_event", // quit if window
 		       GTK_SIGNAL_FUNC (cancel_cb), NULL);// gets closed
+   gtk_window_set_position(GTK_WINDOW(win), GTK_WIN_POS_CENTER);
+   gtk_window_set_default_size(GTK_WINDOW(win), 200, 100);
+
    msgbox = gtk_vbox_new (FALSE, 2);
    if (!msgbox) quit (RETURN_ERROR_NOMEM);
    gtk_container_set_border_width((GtkContainer *)msgbox, 5);
    gtk_box_pack_start_defaults ((GtkBox*)(((GtkDialog*)win)->vbox), msgbox);
  
-   while ((c = getopt (argc, argv, "h?m:t:p:E::e::d:c:C:a::o:")) != -1)
+   while ((c = getopt (argc, argv, "h?m:t:p:E::e::d:c:C:a:w::o:")) != -1)
      {
 	extern char *optarg;
 	extern int optind;
@@ -100,6 +103,10 @@
 		cancel_label = (gchar *)win;
 	     } 
 	     break;
+	   case 'w':
+	     if (optarg)
+		gtk_window_set_wmclass((GtkWindow *)win, (gchar *)optarg, (gchar *)optarg);
+	     break;
 	   case '?':
 	   case 'h':
 	     fputs(GREQ_VERSION, stderr);