I have a problem with my game. I am using a hell lot of background pictures (currently more than 800), often times switching between them within' a loop. From time to time after a solid amount of playtime, it can be that a picture gets stuck in the background. From there on, the picture is often times there when you fade to black or change the background again and disturbs the experience. It can happen all the time, but it mostly happens when my players use the fast forward button. How do I fix that?