That's wierd. The only thing I can think of is that when you make the backgrounds they are too small. When you make the backgrounds, you have to make sure that they are the same size as the resolution you've set for the game (i.e. 320 x 200, or 640 x 480). You can make them bigger if you want it to scroll. On paint just press ctrl-e to open the attributes menu and u can change the size there. I think. I dont really use paint. That work?