IE5 Content Advisor Password forgotten.

I have a user that has enabled the content advisor within Internet Explorer 5, and then forgot the supervisor password. I need to turn the darn thing off as it will not let her browse most of the internet
I have tried down grading and re-installingIE, but it still remembers that the content advisor is enabled; you need the password to disable it.

I know that formatting and re-installing windows will sort the problem, but there must be a quicker fix then that, maybe a registry hack?

Doesanyone know?