I installed Windows 7 SP1 (64 bit), after which my computer shut down completely when I put it to 'sleep', resulting in a 'boot' when starting up again. I updated my MB bios and restored to the point prior to the SP1 installation, after which the 'sleep' function worked properly. I then reinstalled SP1 and the computer again shut down completely when I put it to 'sleep'. This suggests a problem with SP1. Any suggestions to overcome this problem would be appreciated.Thanks,
zestron