Did you uninstall update 5 first
Nope, didn't do that...but I have since gone and installed all previous updates and reinstalled the latest update, and it hasn't fixed the problem.
The computer boots up okay and seems to work okay until I use something explorer related, start bar sometime hangs and going through my computer for instance, but as soon as I ctrl/alt/del explorer, the puter seems okay, well using FF, Trillian, just can't then use explorer to open files etc, which is a bit of a chore.
When I shut down, it tends to either stutter on explorer or rundll32.exe...I'm starting to think it might be something bad, but I don't want to do a format and reinstall of windows...