The mega-trick worked, and for the first time in months I could see my E-upgrade summary. But this is totally baffling. I have used different computers on different networks in different states connecting through different types of service (dial-up, cable, DSL) and using different browsers, all to no avail. But the proxy server works and when the folks at UAL.com enter my user ID and password, they can see my summary without problem (worked twice).

Even if UAL.com is not going to figure this out, maybe someone here can.