Updating Index...

Whenever I try making a post sometimes on 4chan's imageboards, I always get a screen saying Updating Index, and it sends me out of the thread and my post doesn't even get posted.  Even when noko is in the email field.

Has this been happening to anyone else?

I have this problem. No 4chan in my hosts (but have previously had it there). Can ping boards.4chan.org, sys.4chan.org just fine.

Any suggestions?