UBB.Developers Forums UBB.threads 7 Development How Do I? log-out problems

This problem was raised by my memebers. Sometimes when they log out, their usernames still appear (eg. hello, USERNAME).

Another prob, When I log out, when you look at the menu, instead of reading "You are not logged in, (LOGIN REGISTER)", it reads "Hello, UNDEFINED (LOG OUT)"

What's the cause of this and do I fix it?

Thanks.

http://www.greenarcher.net/cgi-bin/ultimatebb.cgi

I think the problem in Cookies or Cache maybe. I'm not too sure.