I didn't have this problem at all.. I only had that issue with XP & Nvidia rendering in dx 8.1.. though.. thru trial and error I did run into some errors.. if you PM me with some further detail about your copy maybe I can advise further.
*Edit!
ROFL! No PM's! Hahahahahah. Scratch that idea - I'll make my email public though
Xero_Seafton**********com