I admit I wondered what this thread was all about as I've (almost) never had a problem accessing my E-Upgrade summary on UAL.com.

But, just to add yet another data point ...today I switched ISPs (and from dial-up to DSL), and lo and behold, I can no longer access my summary either (had no problems yesterday on my old ISP).

Thanks for the megaproxy tip -- I can access it through there.