I am trying to set up cb so that logging in to my website logs in across all of my websites subdomains. In other words, when someone logs in at example.com, I want it to be universal so that the person can also navigate at subdomain.example.com and is already logged in.

I have seen posts about it on joomlapolis, but no solutions that I have been able to successfully implement.

Any help is greatly appreciated!

solved my own problem. go to joomla.php, around line 900, change the cookiename from 'live_site' to some constant text, anything works.

depends on what you're doing. i'm using one database, not true multi-site joomla, and for this purpose the hack is useful.

one big problem i just discovered!!! unfortunately, it does not seem to work in firefox, only in IE. any ideas as to why?

must be something about the way firefox deals with sessions...