The problem is that it is being automatically disabled and I don't know how to stop it. When I restarted my computer after I installed Avast, the picture was there for a short time after while it was still "thinking"(I mean that it is still processing data after the windows desktop has opened but still isn't done opening). I didn't do anything except installed avast and it went away. Is there maybe some Windows option somewhere that Avast is triggering to not have a desktop picture(it is just the pictures, I can still pick a color for the background.) No, webshots is not opening, I don't have set to open on start up. I had it selected as the desktop picture in the Display>Desktop>Background menu.