Thanks for the reply, VerizonGuy. I set this registry setting in an OEM in my kitchen with guid ffffffff-ffff-ffff-ffff-ffffffffffff but it seems that some event that runs later shifts the setting back. Presumably, I need to set it to 0, but apparently, it's always set to 1 in the kitchen no matter what I do.
I found the following info on xda-dev that further complemented your reply:
http://forum.xda-developers.com/showthread.php?t=301365