I have a user who is using Mozilla Firefox on a computer system running WinXT. He says he for some reason can not post in the forums. He can enter a New Topic type it and then he clicks on submit and says it says " Could not insert forum post ". No other users say they are having this problem. Any suggestions of what might be causing this would be greatly appreciated.

Note: I've mentioned to him to make sure he is not blocking cookies to the site. He also says he has a problem changing his password if that is in anyway associated.