If I return to my Windows 7 x64 computer after it has been idle for a couple of minutes, it will only respond for three seconds. After that, everything freezes for while before the computer starts working normally again. The freezing duration varies; it usually lasts between five and 30 seconds, but sometimes it gets stuck there forever, requiring me to hard reboot the computer.
This is very annoying. It's almost as slow as resuming from hibernation every time I leave it idle for long enough that the monitor turns off. What can I do about it?
