I installed a fresh copy of Vista Ultimate and installed SuperAdBlocker 4.3.1004 and different links and pull downs I would choose would spike CPU at 100% until I ended the IE7 process. An example would be www.ameriprise.com and then click on the upper left hand frame (access your account) and choose select an account you want from the pull down and it will lock up every time. I then disabled all the add ons (usually the culprit) and IE7 worked like a charm. I enabled each one and found the SuperadblockerBHOclass add on was causing this issue. Anyone else experiencing this?