Threads not being refreshed

[ww52]

For the last week or so when I open the boards (the cookies automatically log me in) the threads only have posts from several days ago (in particular, for the Rumors board I only get threads and posts up to June 5.) When I logout and view as an unregistered guest, they are up to date (but of course I can't reply). When I log in again, they go bank to June 5. Any ideas?