Hi,occasionally i got a BSOD with the IRQL_NOT_LESS_OR_EQUAL stop error and a system module. Fortunately, i did find a hotfix which actually solved my problem: http://support.microsoft.com/kb/979444/en-usOf course this hotfix won't be the solution for anyone who gets a similar BSOD but maybe it's helpful for others too and that's why i'm posting it here.

I remember I got this one all the time after I got Vista when it came out, turned out defective RAM caused it in my case. Seems like there are still a few slip-ups going on with Microsoft's programming, just as Apple had some this year also. (I hope Microsoft fixes the issue with the back and forward buttons randomly not working with IE8 in Windows 7.)Your post will probably be a significant help to some people I'm sure.