Yes I did have Norton. I uninstalled Norton using the Norton uninstall program before I installed McAfee. When clicking on the link you provided I receive the the error "The page cannot be displayed". Also, I am not too sure what version of Norton I had previously b/c I already uninstalled it.
I have a HP Pavilion dv8000 (EE944AV) notebook
My router is a Linksys Wireless-G2.4 GHz 802.11g with speed booster
Run that removal tool again just in case as it often does the trick.
If you are running Internet Explorer 7 go to Tools/Internet Options/Advanced and click the Reset button. OK and exit, close and reopen IE7. You will have to-enable all the browser add-ons.
If Internet Explorer 6 - go to Tools/Internet Options.. General tab: clear cookies, history and temporary files Security tab: set all zones to default Content tab: disable Content Advisor Advanced tab: set to default. OK and exit.
(If you are running IE6 you should immediately upgrade to IE7).