New login code means everybody is going to be logged-out and will have to login again.
http://www.livejournal.com/talkpost.bml?journal=lj_support&itemid=276202
The login page is prettier and more functional now, too.
http://www.livejournal.com/login.bml
Note: there do appear to be at least a couple nasty
Addendum: there still appear to be a few issues, but the major ones seem to be fixed.
http://www.livejournal.com/talkread.bml?journal=news&itemid=59309