Anyone else having an issue with the Droid changing the wallpaper? Today I took a call from the missus and when it ended and went back to the homescreen, the wallpaper had changed to that horrible yellow one. I've had this happen a couple of times now, once when exiting Messaging, and today, exiting the Phone. Is there somewhere I can send a bug report to google for this? Anyone else had this happen? Is there a quick simple fix?