diff -pur dia-0.95/app/commands.c dia-0.95-fix/app/commands.c
--- dia-0.95/app/commands.c	2006-01-27 18:48:45.000000000 +0100
+++ dia-0.95-fix/app/commands.c	2006-05-26 09:22:59.000000000 +0200
@@ -575,7 +575,7 @@ help_manual_callback(gpointer data, guin
   ShellExecuteA (0, "open", helpindex, NULL, helpdir, SW_SHOWNORMAL);
 #else
   command = getenv("BROWSER");
-  command = g_strdup_printf("%s 'file://%s' &", command ? command : "gnome-open", helpindex);
+  command = g_strdup_printf("%s 'file://%s' &", command ? command : "konqueror", helpindex);
   system(command);
   g_free(command);
 #endif