Hi,
Please read all the way through, it actually is a server question.
I dont know where else to post, so I hope I can get at least a push in the right direction.
Im running a Joomla site but I get a 403 error on registration. I went to all the joomla support sites and they say that its my server config.

Ive heard 2 things.
a. its a conflict between joomla's sessions and how my server interprets them
b. variable length is to long.

I am assuming that its probally something I can fix in the php.ini file and http.config
Question, what should I be looking for to debug the problem?

Any help would be appreciated