>Using Firefox browser.
>
>Starting this week, when I log in to UT it does not show any messages in the top pane. Previously it would show a message if there are more than 400 (I think)...but now it shows nothing in the top pane. It doesn't matter if I last logged in 2 hours ago or 3 days ago.
>
>Also, if I am typing a message to someone, and I receive a reply while I am typing that message (actually, this happens during the refresh cycle), I am unable to type anymore. The cursor shows, and I can even click somewhere else in the message with the mouse and reposition the cursor, but the keyboard is basically dead. I can hit the back button, and then the forward button, and then type again. This problem probably has existed for a long time.

Could there by any security setting in place that could be a factor? Have you checked this page for some information: http://www.levelextreme.com/Troubleshooting.asp