There is a mortscript toggle that you can install, then put the shortcut in your start menu or programs, works like a charm for me and I even had to edit the script because the custom ROM I am running had a couple of extra menu items.
Here is the thread from the TP forum with the script and instrctions on how to changes it if you have more menu items than stock
http://forum.ppcgeeks.com/showthread.php?t=47045