Hey again. I tried running it on it's own power rail, didn't fix it at all. The bugs seem to get progressively worse as I progress in single player for example. Ie: first characters I get to see on screen are ok, no glitches, but after advancing, new characters that show up(eg: stalkers in EP1) or weapons if I do the all weapons cheat start having those glitches.

In multiplayer it can start off well but after a while next time I look at another person they're all full of glitches, and weapons and certain objects are always glitchy, eg a triangular piece of texture stretched over part of a fence or something making it opaque..

The glitches kinda remind me of some early playstation games' gfx glitches, Tomb Raider comes to mind, as if you move around, some glitches appear to go away when looked at from a different angle.