Can I repeat Mckayz' arghhhh.
I just checked my settings, I am definitely not meant to be seeing threads from most recent post, but if I click on a thread I haven't read, even one with 100+ messages, I go straight to the last one, rather than the OP.
Meanwhile, if I click on a long thread I am on, it goes straight to the OP, and I have to scroll through hundreds of messages to get to the last one I read.
aaarrgh
Still, it means I won't be spending any time on MN until it gets sorted out, which is probably a good thing because of my huge to-do list.