I'm using Mozilla Firefox 3.0 Beta 3 on Gentoo Linux. After going to the support form in the panel, when trying to go to the second step, nothing loads but the notice at the top.
It could be a Firefox plugin that's stopping it from working.
I've tried disabling all of my plugins. Still no go.
This could just be a Beta issue. Does Firefox2 work?
Have you tried using a completely different browser?