I have one laptop PC (a new Dell) that is running Windows XP Pro and IE 7.0.  
When this one laptop accesses www.usairways.com and tries to search for
flights or tries to log into his account, he gets a "Internet Explorer has
encountered a problem and needs to close".    I am trying to determine what
is causing the problem on his laptop - his is the only one that is doing this
in my company.  

My laptop (also a Dell laptop with the same software) does not have this
problem.  The only difference that I can determine between the problem laptop
and my laptop is that my laptop is older and had IE 6.0 installed prior to
updating to IE 7.0.   As I recall, the problem laptop came with IE 7.0
installed on it.  

After several hours of software reinstallation (IE and Java), comparing IE
settings between the good laptop and the problem laptop, changing/diabling
antivirus software, changing firewall settings, I made no progress on
determining the cause of this problem.   Then I decided to do one final
thing, I went under Programs - Accessories - System Tools - Internet Explorer
(No Add-ons).   When I run IE with no Add-ons the usairways.com website runs
fine.  

This tells me that I must have a problem with one of the add-on versions
conflicting with something on the website.  

Anyone have any ideas?  Has anyone else got this problem?  

Any help would be greatly appreciated.

Thanks