All day today there has been a delay in posts showing up, whether mine or others. I can see the name of the person who made the most recent post in the forum index, but when I click on the thread, I don't see that post.
Just too much volume today, maybe?
I also had an interesting occurence where I replied to someone's post who came in right after mine, and it appended it to my post which was on the page before theirs.
This post was the one where that happened (it's still like that).
Hope it helps in case you didn't know about it