You can right click on IE and select "Open without Add-ons" - I'm betting that works.
What verison of IE are you using? You're going to need to uninstall down to the previous version.
The backdoor trick:
Go to C:\windows\ie8\spuninst or IE7, IE6, etc. Under the last folder, you can run the uninstall there. If a older version than IE8, you may not get the executable. Rename the .txt file (spuninst.txt) to spuninst.CMD or spuninst.BAT. Double click on it and it'll downgrade IE to the previous verion. You can go ahead and upgrade it again.