It seems that at a certain number of replies, the page numbering in topics isn't quite right. I went into "View New Posts", and the latest post was by "Icklesop" in the topic "What band do you play for", which was listed as being 5 pages long. Icklesop's message wasn't there. Went back to the "View New Posts" and used the "go to last post" button instead of the page number. From there, I was taken into "page 6 of 5" of the topic, with Icklesop's post now visible. Might be worth having a look at this.