Hey guys. About 4 months ago I bought an Alienware Aurora with a Nvidia GeForce GTX 555 video card. I did this to play Battlefield 3 and Skyrim. However, recently, like probably for 2 weeks now, after about 15 minutes of playing, each game starts to "explode." Meshes are stretched all over the screen to a point where I can't even see what is going on. Textures also turn black and a weird rainbow color mix. The texture problem happens on the desktop and occasionally other programs as well. I was wondering if this is a problem with my video card. If it is, what video card do you recommend me getting to play these games on Ultra quality with good FPS?
My budget is between 250-450 probably. Thanks so much, and please help me solve this problem.