BSOD - page fault in nonpaged area

Hi - I've had a look through some other posts on here, run a few tests and copied the last error log from the event viewer. It seems I get this a lot when there's video running, but I'd like to get to the bottom of why it's happening. i've been getting a lot of system crashes recently and can't get my system to write minidump files, so I can't see what's causing it.

I've no experience of reading these, so if anyone can help it woud be greatly appreciated. Here's the error log:
Event Type: Error
Event Source: crypt32
Event Category: None
Event ID: 8
Date: 20/12/2011
Time: 11:20:04
User: N/A
Computer: ****** [blanked out my computer name]
Description:
Failed auto update retrieval of third-party root list sequence number from: <http://www.download.windowsupdate.com/msdownload/update/v3/static/trustedr/en/authrootseq.txt> with error: The specified server cannot perform the requested operation.

I was able to found a ms kb article for solving this issue, so to resolve it you must connect to the Internet or turn off the Update Root Certificates component. To turn off the Update Root Certificates component, follow these steps:

1. In Control Panel, double-click Add/Remove Programs.
2. Click Add/Remove Windows Components.
3. Click to clear the Update Root Certificates check box, and then continue with the Windows Components Wizard.

Thankyou for coming back to me on that - I couldn't find anything specific on the MS kb boards regarding a crypt32 error, so I appreciate your efforts here!

I've run the root certificates suggestion you made, and will post back if the problem persists.

Cheers!