I can't figure out how to turn Aero back on. I had it running and to save resources I turned it off and went to Windows classic. Been searching for an answer on how to turn it back on. Found instructions to go into personalize menu, open color and appearance and there should be way but my appearance settings show up just like in windows XP with nothing about Aero. Then went to Themes and there is no Windows Vista theme available. Only My favorite theme, Current Theme, and Windows Classic. None of these resolve the problem in appearance setting box. My specs are amd x2 3800+, 2 gigs Ram, ATI x850xt PCI video. Thanks.