Teresa,
When you first got in yesterday, did it say “Nice to see you” and “You have entered Main Room”?

Also, when you were typing messages into the chat room were you seeing them showing up?

I also assume from your email address that you are in the UK. When you tried on Wednesday, which chat were you going to and what time were you going? (include time zone).

Finally another thing I thought of, does your computer have some sort of virus protection that may have any kind web site blockers that might be interfering? For example, I recently renewed McAfee Virus protection on my computer and it activated something called "Site Advice" which I'd never seen before, but which caused some web sites not to come up right until I had disabled "Site Advice".

Kitty