Motorola Xoom :: Clearing Out Old Back-ups?

I had a Moto Droid Pro which I was backing up with a Google account. I then lost the device. I decided to replace the lost device with an iPhone and at the same time purchased a XOOM. When I initially signed on to the XOOM and connected the same Google account, low and belhold some, but not all, of my DroidPro apps/settings were restored to my XOOM. Initially, not such a big deal, but now that I have been having problems with my Xoom freezing and having to perform countless Hard Factory Resets [URL] I have a feeling that the restore operation is getting confused between the old DroidPro backup and the new Xoom backup. Furthermore, I recently signed up for AppBrain [URL] to track/restore my apps each time I had to do a reset. When I signed up for AppBrain, it listed both the DroidPro and Xoom in my Android Market data...How do I tell Google/Verison/Android Market that the DroidPro data should be cleaned from the system?