Actually, this might have to do with the Suhosin PHP patch I applied. It is a security feature patch that does not allow remote inclusion of files (like
http://blah.com/?content=http://some...*.com/somefile) where somefile is a PHP file that will then get included.
One of the changes is the cookie, it is automatically encrypted/decrypted and verified for a checksum previously in the system to make sure it has not been tampered with. This caused everyone to be logged out. I don't believe it should have had an effect on what is rolled up and what is not rolled up, since I have rolled mine up and it is no problem, I also have two forum categories that I have rolled up, and those are still fine as well.