I also had to reboot after clearing cookies and files on 1 pc

I had a problem for about a week where firefox wouldn't let me login. I just used IE for that week. That was even after I cleared the cookies + temp files. I tried clearing again a week later and it worked fine.

Mike, I've checked permissions for your username, IPs, email address... nothing shows you've been banned or anything like that.

What happens when you try to login? Does it just take you back to the index as a guest or does it give you a message?