GTA IV runs fine then drops unplayable

[xHerobrinex]

I never had this problem EVER, before.
It's been going on for a week.

So, I play GTA IV (steam) for like, 30 seconds to 5 minutes before it lags unplayable. It basically stops responding then responds with 1 fps, and repeats over and over. It runs perfectly fine at max fps, with high settings. Yes, I tried lowering the settings, view distance, etc. Has this ever happened to anyone before?
Some specs:
Intel(R) Core(TM) 15-2500 CPU @ 3.30GHz
8.00 GB of RAM
64 bit

Edit: Also when I try changing the resolution of the screen it does the same thing ^

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[Socky]

meybe yoru computer is mad at u

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[xHerobrinex]

meybe yoru computer is mad at u

u shod apoligise

[Pepsidude]

Might be heat related. Same thing happened to me a while back.

[Alyx Vance]

Might be heat related. Same thing happened to me a while back.

I agree.
I had this one PC that would run sooo hot you could cook an egg on it, when it got hot it would start messing stuff up like graphics and everything.

[xHerobrinex]

Might be heat related. Same thing happened to me a while back.

Lots of dust on the outside - must be some dust on the fan or something