I'll just hand out the answers and you can tell me what you don't understand.
1. Use a browser other than Internet Explorer.
2. For IE the fix always seems to be to remove all BHOs.
What's a BHO?
Read http://en.wikipedia.org/wiki/Browser_Helper_Object
How do I removed them?
With Hijackthis from http://www.spywareinfo.com/~merijn/programs.php
Bob
Dear members,
Each time I log off a browser I get the following message:
Internet explorer has encountered a problem and needs to close. We are sorry for the inconvenience.
If you were in the middle of something, the information you were working on might be lost.
Please tell Microsoft about this problem.
We have created an error report that you can send to help us improve Internet explorer. We will treat this report as confidential and anonymous.
To see what data this error this error report contains, click here.

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