I suspect that you were looking at the Mozilla-compatibility number, which is 5.0. The latest version of Firefox is 3.0.3.
Deleted for redundancy.
I’m struggling with Hulu right now myself and getting the same message.
I wonder if it is less “your connection” and more others’ connections. There are three things I really want to watch right now: a) the most recent episode of The Office, since I missed the costume part; b) the IASiP episode “the gang runs for office”; c) the clip of Dennis trying to read Charlies script from the same episode. Not a single one of these is working for me no matter how many times I try. Actually, one time I did get into the Office ep, but only for a jerky 1:00 before it froze up. However, I can get other clips and shows to run no problem. The three things I’m trying to watch are probably pretty popular clips at the time, so my only guess is that there is probably a lot of traffic holding up the trucks in the tubes.
The Bob Newhart Show doesn’t seem like it would be quite that high in demand, but have you tried watching even at odd/off hours?
ETA: I am using IE fwiw.
Internet Explorer 3.0 came out in 1996. Windows 2000 shipped with IE 5.01.