umm I checked with (IE6,Firefox3, Chrome)
Page 23 - First post 330 , and Last post #344 (330 thru 344)
Page 24 - Post # 345 then 346.
and looks like this SMF forum only has 1 type of display settings vs other forums settings.
Very Strange on your end!
Try another browser if you can! Or log out and view as "guest".