ATI 3850 AGP Graphics Card Trouble?

The FSX simulator is a very system intensive game. Not only is it graphic intensive, but also takes alot of computing from the CPU. You only changed one aspect of your gaming experience, not the total package. If your CPU was slow with your 6600, it is going to be slow with your 3850. You would have been much better off to not have bought that AGP card. AGP has been out the window for 5 years now... Good news, if you have paper laying around on your desk, you can stack it into a small pile and take the AGP card our of your system and prop it on top of the pile of paper and it will stay in one spot for 5 minutes or so...