Hey,
Since my PC went "sick" I had to reformate it. Before it was sick and required reformate, it all worked well with the games. No lag, nothing. But now, after the reformate some games lag (including GTA SA). I don't know why. I haven't change a bit. Info.: (I know it is pretty crappy, but it worked before):
Display Adapter(graphiccard), NVIDIA GeForce4 MX 420
Ram, 512mb-ram
Servicepack, none a.t.m since I just reformated it.
MHz, 1999/1.9 GHz
Virusprotection, none a.t.m since I need service pack.
Regards -
Harald