Hi erlene and welcome to DaniWeb
You have posted in the Game Development forum which is a forum for discussing game programming. I think you will have a better response from one of the tech forums on this site.
I will say though that there are a number of things that could be happening. I think most likely there is a problem with your video card (just a guess). Try running the game on lower quality graphics and see if this helps you.
Good luck
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