Live wallpaper problem with Launcher Pro

I recently installed launcher pro beta (which I love) and removed home++ which I had been using for some time. I've also installed the latest update for launcher pro.

As part of this change I added some live wallpaper. Funny thing is that my phone (droid) will just spontaneously revert back to the background I was using with home++. The live wallpaper will work for a short time, then I'll turn my phone on and, voila, old background. I can't even find that background anywhere on my phone.

I have no idea why my phone is doing this and how I can delete this rogue background from replacing my live wallpaper.

Any advice is much appreciated.