Usually when I am logged in, my session is persistent until I log out. This behavior stopped some time this evening. Every time I quite my browser, and bring the 'fritter back up, I need to log back in. At first, I thought I was having browser issue. I fiddled around for a while trying to eliminate the usual suspects, but could find no explanation as to why this was happening. I tried this on another machine, and it too, suffered from this new behavior. Any idea what the issue is?