Are you using one of the beta versions of Firefox 3? If you are, there's a bug either in the browser or the panel (or both) that causes the betas to not be able to submit support tickets. The workaround right now is to simply use a different browser, IE, Opera, Safari, 2.x versions of Firefox, etc. all work fine.
This definitely sounds like an issue for support. I definitely recommend you try a different browser as described above and submit a ticket to them.