Today I had one of my clients phone and advise that he logged into the site, and went to update his profile. When he clicked on the update profile, he got the normal CB Profile page but there was a red background to the boxes.

He then updated his details and clicked update, which promptly dumped him out of the site (I presume to the homepage). He then tried to log back in and it wouldn't let me.

I logged into backend and saw that he was still logged in. I forcibly logged him out. At which point he could log in but after logging out he couldn't log back in again.

I logged in as him using IE and FF without red boxes or issues regarding logging in and out.

He deleted all his cookies but still had the same problem.

Anyone got any ideas? I jokingly told him perhaps the site had taken a dislike to him as I could log in and out no matter what browser I used.

Site format:
Joomla v1.0.10
CB v1.0
CB Login Module v.1.0