I know this thread is ancient. BUt I had the same exact problem. I had been using the remote so much that I never noticed that when I walked up to it and tried to lower the volume it shot UP.

I called Outlaw and they told me it was a certain lot of receivers that had this fault and I got a new (or refurbished - I forget and could care less) one shipped to me! My shipping back was expensive. (E-gads Mailboxes, etc)

But my new one functions flawlessly!!!

I hope the rest of you found out eventually!