I'm used to not having to log in to RCU, but starting yesterday, every time I reboot my machine and then visit RCU, I keep wondering why posts show up as read that aren't - and then I realise that I'm logged in as guest, not as myself.

Have your recent site upgrades perhaps caused this problem ?

(Note - this issue surfaced simultaneously on each of the machines that I sometimes visit RCU on - so it's not a change on my system that is causing the issue - it seems to be server-side).

Gordon