The PS fan is running, and doesn't appear hot, stressed, or overworked. The memory has been fine for some time... I suspected some months ago that one module was bad/faulty, but I took it out this evening and still got the random rebooting.
When I checked the Event Viewer I noticed that every time it crashed there was the same error:
Event Type: Error
Event Source: Service Control Manager
Event Category: None
Event ID: 7001
Time: 7:35:53 PM
The Print Spooler service depends on the LexBce Server service which failed to start because of the following error:
The service cannot be started, either because it is disabled or because it has no enabled devices associated with it.
There are no ?'s or !'s in the Device Manager, fwiw. I've tried Google but to no avail. I don't have a printer and don't need one, so if deleting all printer-related drivers would help I can definitely do that if needed. But I don't know what a Print Spooler service is nor a LexBce Server service, etc...
Edit: I've also run AdAware & Spybot and removed whatever popped up... though SpyBot found some stuff it was apparently unable to remove. Either way, the descriptions of them seemed relatively benign, some data tracker stuff and so forth -- nothing that seemed like it would force re-starts randomly. Maybe I'm wrong though and mal/spyware is to blame still, I'm not sure.
Edited by cmdr keen, 07 October 2008 - 07:04 PM.