I have no solid answers, but I have questions and suggestions ;-)
Does it do this every time?
What version of IE are you using?
You might try clearing your History, Temp Internet files, and Autocomplete.
Have you run an updated anti-virus program?
Good luck Mudskipper
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Groucho said it best- "A four year-old child could understand this! Quick! Run out and find me a four year-old child: I can't make heads nor tails out of this!"