Win32/Cryptor

Graphics card would be my first guess.

Getting to the graphics card in a laptop is very difficult. I only play games on my desktop machine, easier to get to the hardware in desktops than it is in laptops.

yeah. but I've played other missions before and it doesn't do anything.

Depends how much power the graphics card has and how much is used in certain areas.

I can play GTA2 (yeah, I'm old fashioned) fine, but in certain areas of the game, it's very laggy and I'm only driving.

ok. Thanks.