Weird screen issue during and after playing the game?

[hepinizisikerim]

Hi there. I am having a serious problem. Sometimes during game play, a small part of bottom of my screen goes top of the screen. For example, if I am walking with my lantern, part of the lantern shows in top of my screen along with the everything which is in bottom. Here is an example of how it looks like:
http://img196.imageshack.us/img196/4525/...centim.jpg (this is not from my game. I edited a picture to show how it looks like. I was not able to print screen my issue)


This is not the only problem. Whenever this happens, after I quit the game, my desktop looks like this:
http://img35.imageshack.us/img35/8234/wi...esktop.jpg


Anyone have any idea what is wrong with my game?