A look at the Event Log shows these events occuring, some occuring at different times, but all of them occuring with the same Error Code of (7011): A timeout (30000 milliseconds) was reached while waiting for a transaction response from the Schedule service.
That error has appeared shortly before each of the freezes it seems, and has occurred for these different services: NlaSvc, Ralink UPnP Media Server, CryptSvc, NIS, and Dnscache.
I tried reseating my SATA cables, and so far the system hasn't hung again, but I'm a bit worried that my hard disk might be failing at the same time.
Do you think I should be concerned about this?
EDIT: That didn't fix it. I'm still freezing. And i just noticed my god awful typo in the oost title. >_< I wish i could change that...
Edited by jnk1296, 22 October 2012 - 09:26 PM.