content advisor

An ex-employee at our company set a password within the content advisor of IE5.0 on a few of our pcs and now we are experiencing problems when attempting to view websites. When we attempt to access any web site, a content advisor window pops up saying the web site is not rated. We cannot allow websites to be viewed nor can we change the settings without the password.

Is there anything we can do so that we may view internet web sites, besides a clean install?

Thankyou in advance for your help.

Sincerely,

Kim Rainbow