I actually have my blog service completely stopped now. It is at onvertigo.com. The problem is that I had to upgrade my database from 3.58.23 to 4.1.21 (mySQL) and have had no other issues with Wordpress, bbPress, or Wordpress MU in general except now I realized that if you go to the following URL it doesn't work:
http://onvertigo.com/wp-signup.php
What happens is that it redirects back to the main page. I found out if you go a URL like the following it will go to the page:
http://onvertigo.com/wp-signup.php?new=username
I can signup for a new blog by going through the process, but when you click on "Create Blog" it doesn't create the blog and redirects me back to main page just like going to wp-signup.php in the first place.
In otherwords, the site isn't working because I can't add a blog and no one can create one themselves.
Any ideas on how to fix this? I would hate to rid myself of all my current blogs and then try to re-install.
I haven't changed any files on the server other than adding templates (but not effecting the HOME theme at all). Nothing else is changed on the server, just the mySQL upgrade.
Please help if you have something that I can try. Much appreciated!
Trent Adams