Weird, now I have to scroll down past the threads I've already read to get to the new ones.

For example this thread. I've read half the thread but when I clicked the "take me to first unread post" it took me to the OP, first post. This little marker at the top left of the thread is light blue so it thinks I haven't read it yet. I'll let it be for a while and see if it fixes itself. vB will flush caches on its own so fingers crossed it works