Is your question generic, or specific to a problem you're having?
If it's specific, I have to say that you haven't provided enough information to seriously answer the question. That the question as is can only lead to guesswork and supposition.
If it's generic, I suppose it would be like asking if Windows 7 causes game problems; completely debatable, and dependent on the game(s).
You might want to look at my "How to ask for help" guide in my signature.
Sorry, and good luck.