Interesting. I did mess with all the security, virus, privacy, cookie, etc. settings with no luck. If others are getting it too, then it must be some kind of scripting error on USair's end. Maybe they have old scripts that aren't 100% compatible with some settings in Vista. Like I said, I have no problems with the computers that have Windows XP, just this one. It is strange, but I'm glad it's not just me. At least I can stop worrrying that my new 'puter is jacked up!
Thanks everyone for the help!