Hi, I'm running Vista Ultimate and I've just installed SP1. Upon restart the Aero scheme I was running has disappeared. And it's not in the options when I go to my desktop display properties either. I've checked the Performance Indicator and I scored 5.9 in both the graphics sections (I'm running an Nvidia GeForce GTX 260 gfx card) and my base score was 5.3. I did some Googling and decided to update my driver from the NVidia site - again this hasn't fixed it. So...any ideas? My CPU is an Intel E6600 (dual core) fwiw. Thanks for your help! Cheers.