Whenever I use a search engine, such as google, yahoo, bing, ect., with ie7 I get a completely blank page except for the words "Invalid Http Request Header " at the top of the page. This only happens when I search, other than that, my internet is completely functional. I've tried installing the latest version of Mozilla firefox, and it did the same thing. I've cleared my caches and cookies with CCLeaner, and even updated all my software such as flash and java. I'm out of ideas, as the intenet works fine on my other hard drive with a seperate OS, so it must be something to do with just my computer. I don't remeber changing anything, and it just started happening all of a sudden. If its a virus, so far its been undetectable. Any Ideas?