When I first got my Treo 650 I took a picture of the family and set that to be my wallpaper. Trying to be fancy I then set the phone preferences to show me upcoming events. Later I decided I didn't like that and turned it off. Unfortunately, the wallpaper that used to be full screen now has a big white line at the bottom. If I try another picture I get the same white line at the bottom. If I try one of the wallpapers that came with the phone it's full screen. I've tried numerous soft resets (the phone has done a few itself ) but they've not helped.

Any thoughts? Thanks in advance.