John Denver, I had the same thing happen to me, I had to go into my registry and change my default search page back to normal.
2 days ago I downloaded (without knowing) an ActiveX script that changed my homepage and then changed my registry so that a.) I couldn't reset my homepage from the Internet Options window, and b.) I couldn't edit my registry to undo the homepage block. I spent 2 days searching for a way to fix the problem, I was ready to swim to China and kill the webmaster who had this on his site.
Instead, I loaded his site in the Hun's nice little JavaScript. I'm happy to say his server is no longer responding.
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Plenty of wheat to go around.