Wow that is very interersting, but my computer had AVG, was up to date, high security settings then, i rebooteded it and it switched to windows classic log-in and wouldnt log in and it showed an x in a CMD box, then i got the BSOD.
obviously you seem to have trouble with windows, because none of that or any of the problems you say you have had have nothing to do with AVG.
that doesnt mean AVG let a virus in...sounds more like a screwed up file for your windows classic theme...
