Originally Posted by
1 Infinite Loop
It very well could be sleep or hibernate. I assist our site's IT manager and we have just about all those features turned off because the have a habit of messing with applications.
1) Totally disable all screen savers.
2) Disable computer sleep. This is different from display sleep.
3) Disable hibernate completely. This is the really important one; it's more invasive than computer sleep.
For all our cam workstations we set the displays to sleep after a time. This has never caused us any issues at all. We have completely disabled computer sleep and hibernation since they have caused us a great deal of problems in the past. You didn't mention which version of windows you have but, assuming you're on windows 7, the first two settings are in the Power section of control panel but hibernate takes a bit more digging.
I don't think you can disable hibernate from the control panel but you can do it from the command line.
Type this in command line window:
powercfg.exe /hibernate off
After you do that you can delete the hibernate file which is no longer used and and can be quite large.
Hiberfil.sys