Either help this FReeper fix the problem, or shut the hell up. It is not at all difficult to go into the registry to fix this problem. Some laptops come with a loaded Trojan that keeps defaulting the browser to the unwanted engine.
So far as claiming that Mac, Lin-sux, (Linux) etc. don't do this is not at all true. It happens to them also. There is no such thing as a perfectly secure OS.
Thanks P-F. And thanks to all. Avast! worked and cleaned it up. It took a boot scan on start-up. And it was the free version...
Here is the site: