lag out while in IL?

Anybody else having this problem? Its really annoying and starting to get on my nerves.

I recently bought a new comp, fairly good spec (Alienware Area-51 M15x)

and like all new comps, it comes with vista! apart from the shader effects and other gfx issues

i experience this annoying 'freeze' bug. it happens randomly in IL, its not Inet lag, its almost processor lag.

but i know my comp is more than good enough to run the game, so im not sure whether it's a compatibility prob with vista.

all of you experiencing the same prob...do you have vista?

Carloss