Can't enter text into the chat text box.

Here's a strange bug. I can't type into the chat text box at all. When I hover my mouse over it, it shows a circle with a line through it (ie the universal "No" sign) . Refreshing doesn't fix this at all. I've only tried this in Firefox. It was working earlier.

EDIT: Closing the tab and loading the page in a new one seemed to fix the problem though.

Its this 100% reproducible or just sometimes? In order to prevent flood, you cannot tye until your last message echos back to you. If your message got lost and never echoed back you should be able to type after 10 seconds.