Wow, a lot of you don't know what you're talking about. the games you play now ARE SUPPOSED TO RUN SLOWER ON WINDOWS VISTA. YOU'RE SUPPOSED TO UPGRADE YOUR HARDWARE AFTER YOU UPGRADE TO WINDOWS VISTA. and YES! Windows Vista is the next leap in PC gaming. It has DIRECT X10! WINDOWS XP DOES NOT! THESE ARE #$%^ING DIRECTX9 GAMES! I can't believe how clueless everyone is........ It takes more processing power to run windows vista in the background while you're playing your games people. If you installed windows vista on your machine today and played World of Warcraft, I guarantee it will be SLOWER than when you had it with XP. PLAYING dIRECT x9 GAMES ON VISTA IS A COMPLETE WASTE. WAIT TILL GAMES SUCH AS CRYSIS COME OUT, OR THE DIRECT X10 PATCH FOR COMPANY OF HEROES! DO YOU REALLY THINK MICROSOFT IS THAT DUMB?