Machine was working fine until about the time the message about Windows update causing a black screen of death came out. It's used as a media centre with twin dvb-s tuners and one dvb-t. That all works fine, and the machine goes back to sleep after half an hour. However, sometimes it just won't wake up. You press the power button the remote, the fans kick up, the light comes on but the VFD doesn't light up and nothing comes on the screen. Only way to get back is to switch off completely by holding the power button in, then starting up again. Obviously a nightmare over xmas as it went to sleep one night and then didn't record any tv for the rest of the week. Reformatted with x64 which was a tad slow, so put x86 back on, just gone over to the machine now and pressed On, and i've got the same bloody problem, despite a full reformat. Only things on there are Symantec corporate, imgburn and newsman pro. Oh and a VFD driver. Personally I think it's a windows update, but any ideas which one? Event viewer isn't very useful, not that I can understand most of it. It doesn't happen every time the machine goes into sleep, but it's never happened within 24 hours of reformatting, hence I think windows is installing an update. Almost seems as though it's not booting off the hard drive when it resumes, but is that a daft idea? Don't have any idea how S3 works other than it suspends to RAM.