Can't Stay Logged In

[fantanoice]

Right, so I finally got my domain name to point to my MyBB forum, but now whenever I try logging in from the domain (http://dashingforums.com), the log in goes through successfully, but when it goes back to the index I'm a guest once again.

The problem doesn't occur on the other link:
http://rockbandforums.ej.am/dashingforums.com/

Does anybody know what could be causing the problem? I thought it may have been my cookies, but that doesn't explain why I can stay logged in on the original link...

 

[el canadiano]

I fixed it already. It was a cookie + a domain setting in the ACP's General Settings category.