[Edi]

A bug report that vague is useless. We need to know more.

What kind of a glitch?
What happens?
How does it manifest?
Does it happen every time? Or only occasionally?
If occasionally, is there any kind of predictable pattern?
What sort of drivers do you have? Are they from the graphics card manufacturer and are they up to date?

Answering those questions, or most of them, will help narrow the issue down, if it is an issue at all. It could simply be something on your system, instead of a problem with the game. Even something as simple as not having an updated BIOS on the motherboard can create all sorts of problems, especially if parts of your system like the graphics card are much newer than the rest of it.