I have a Windows Vista Home Premium 32-bit computer with 512MB RAM, an ATI Radeon Xpress 200 Graphics card with 128MB RAM, and an Intel celeron D 3.2Ghz processor. I have no mods installed on my GTA III and it is quite choppy when I'm in a car driving around liberty, on foot it's absolutely perfect, however the aiming is quite slow and feels sluggish. I have a feeling it's because the GTA III engine draws everything, including the stuff you can't see, so that's working my system too hard. But my PC exceeds the minimum system requirements for GTA III, so it should work well, I dont understand. I have draw distance to minimum, resolution at 640x800x32 frame limiter and frame sync off, as well as trails. ( Those three make it a lot worse). Please, tell me how I can stop this, I really want to enjoy GTA III like I can with vice city, where it is as smooth as butter and pushes out 40-60 frames per second.