Next week I'm releasing new version

I unfortunately ended up with the same issue, once I upgraded to DNN 4.8 the chat stopped working.  I removed the module and downloaded the most recent version and re-installed it.  The chat work is up again, but nothing comes across the screen, so no mater what you type it does not show up.  Any suggestions?

On a website I frequent, In the chat room I can see every one and can be seen, when using my laptop with firefox - Vista OS

On my desk top I can be seen, but cannot see any of theparticipants. I can type, but when I hit "send" I don't see it on the whiteboard.

I use Firefox with XP OS. I have also tried IE with the same results.

Any thoughts?