I am having serious lag problems with GTA: Vice City. Whenever I fire weapons, it lags up to the point that it's impossible to play. I have never experienced such lag with any game. GTA3 and GTA San Andreas all work fine without any problems, that's why I can't understand why Vice City is lagging.
Here is my system specs:
AMD Athlon 64 X2 Dual Core Processor 3800+, 2.00ghz
1GB DDR2 RAM
NVidia GeForce 6150 128MB (Worked well with San Andreas).
Any help is appreciated,