Internet Explorer 7.0 Problem

I have a PC in my company that can not use the US Airways website. Everytime he tries to search for a flight or log into the site, he gets the “Internet Explorer has encountered a problem and needs to close” error message. He has a new Dell Latitude laptop running XP Pro and IE 7.0. I have uninstalled and reinstalled IE.

Has anyone else had this problem and know what the solution is to fix this issue?