I recently put Vista Ultimate on my comp (yeah yeah I know, shut up) and installed my vid card drivers and everything. DP won't run though, I get the opengl error. I got the newest drivers from ATI and the catalyst center too. The info on it says it's got opengl installed. So far this is the only problem I've had on vista, I'm having dp withdrawals though. I know some of you have had a problem like this because I did some searching around, but no solid answer. Any help would be cool. I put two pics of what I'm talking about. BTW, my vid card is a 512MB ATI Radeon x1650.