New
#21
OK, so here's what's happening (it's taken a little time to be certain).
The Bugcheck seems to have something to do with my specific user.
If I leave the PC at the user login screen, without logging in, the PC runs indefinitely with no bugchecks, even though 'system level' tasks are running e.g. backups, anti-virus and any user programs that run at startup (as opposed to login). If I then login I get a bugcheck within a couple of hours (sometimes within minutes).
I created a test user; when logged in to this test user the PC will run indefinitely without bugchecks. If I then login to my user I get bugchecks.
From this it seems that the issue is with the user itself, or something that only runs at the user level, and which interferes with the graphics driver.
I will try to establish what runs at the user level in my user, and not in the test user.