ag - it's a disk caching problem. Try one (or all) of the below:
(1) Try refreshing the page
(2) Assuming you're in Internet Explorer, click on the 'Tools' Menu bar, then 'Internet options', then 'Settings' and where it says 'Check for newer versions of stored pages' click 'every time' or 'Automatically'
(3) Press the 'Post Reply' button above/below the posts in each thread and then when you get the reply box opened you can see below it all the posts in the thread even the ones you couldn't see for the caching problem
BTW Welcome aboard. Nice to push up our numbers before the Ryder Cup comes around