this is damn hard, i havent found any documentation on this , but its very simmilar to the one kennyr is reffering to (mem access , it might even be a broken simm)
but i am pretty sure that its the EnV: variables in your api (p96 or CGX ?) also, check your w3d settings.
and a final answer is , check how much FREE rtg ram you have , and games like wo2097 can run in single buffer mode , which means it wont "EAT" alot of ram, tripple buffer require 3x times as much Rtg ram (normally thats 6.6 megs on WO2097).
good luck
PPS: if you have a voodoo setup, u may send me a personal note for a bit more specific info)