Keep the Mac & dump the website
If only airlines were as reliable as a Mac. At least something can be trusted to work properly and intuitively when you need it.
I am working with the hypothesis that it is some update that has not yet been properly checked out on Safari/Firefox and will eventually come right. I never expected much from a company that has a downloadable timetable for only Windows and hand-held machines.
I don't suppose they'll adapt it for the i-phone either