Quote: Originally Posted by jovanD
i tried to change it like in that tutorial but it didn't work
any other sugestions??
You're using the windows basic theme.
Did you try using any aero theme and see if the previews come back?
Try the troubleshoot for aero:
(1)Click on the Start
(2)Type in Find and fix problems with transparency and other visual effects
Troubleshoot and see if that gets back your aero.