Update: Internet Explorer redirects to Firefox?

I've yet to figure out why my Internet Explorer crashes on half the web pages I visit, and I know now its definitely a specific type of code causing it fail as the problem persists if I go to the same website multiple times. I've done some digging and found a similar error that was caused by KB918899; which applies to IE6 with SP1, but this isn't helping me (I'm on Windows XP Media Center ver. 2002 with SP2). SFC didn't help. And reinstalling with ie.inf didn't help. I've even gone as far as doing a repair installation of Windows, which didn't help. Anyone have suggestions?