GTA3, ATI 8500 problems??

[sweetrugger]

I have an ATI AIW Radeon 8500. Installed GTA3 with the 1.1 patch and the ATI patch. But the game is still messed up. It runs fine (ie, its not choppy), but the rendering has problems. Parts of people, buildings, cars, etc are invisible. Light poles disappear. Weapons become triangles. If I see a problem, I pause it and go to display settings, turn Trails off, go back to the game, then go right back to settings and turn Trails back on. This takes care of the problem in the near area. So for some reason the trails arent being rendered correctly?? My video card can work with trails, but not all the time? Has anybody had this problem or know how to fix it??