Loving Vista for now (although sometimes it boots with Aero Gass enabled and sometimes not). This new Sleep is not working properly on my system. My board is an Asus P4P800-E Deluxe Socket 478 . I belive that its a problem with the board and bios settings rather than an OS problem. My board has the latest bios (although its dated 2005!) I think it has to do with S3 and the video re-post settings. If video repost is off, it goes to sleep but when resumed, the screens never come on, amber on both monitors. (ATI X850 PRO AGP running 2 DELL 17's LCD) If video re-post is on, as soon as the computer goes to sleep it resumes instantly. I have to shutdown Windows every time.