Internet Explorer 7 400/403 Error

I recently installed IE 7 Beta and can no longer access most of my "financial services" websites, e.g. online billpay, statement retrieval, etc. I can get to the basic "home page" but when I login and try to go to the page with statments, balances, etc. I get a 400 or 403 error message. Other internet sites, where I have to log in, work okay. Also, I had no problems in IE 6.

Have played around with my Internet Options but no success. Can anyone suggest what setting I need to change?? OR Tell me what is going on with IE 7 that wasn't an issue in IE6??

Thanks in advance ...

 

That's the problem using beta's. You are the one that finds all the bugs.

Does IE7 have an uninstall option? If not & you are using an operating system with system restore you could try restoring to a recent point.

Don't use IE7 until it is officially released as a final, not beta, unless you want to a 'tester'.