MyBB Community Forums

A few days ago some users have been unable to post messages, they are getting the following error message:

You are trying to post a message too quickly after posting a previous message. Please wait 340120 more seconds

I am running 1.6.4 on Linux

I ran the security check, all files are good.
I have forum runner installed
I am using akismet
I am using Fassim AntiSpam
I am using Forum Cleaner

My post flood time is 15 seconds (it used to be 60 seconds, but I reduced it)

I can turn post flood time off, if necessary.

I redid all the system counts, and did a MySQL check on all tables. All was fine.

At the same time this issue started, there were a few posts (by some of the same users) that was set in the future (to 11/11/2011) as opposed to the actual date (11/04/2011)

Some of the post icons are missing (I will upload them again in a bit, but it is curious)

Any feedback, guidance would be helpful.

Your server time may be messed up.

The server time seems to be correct. It is only affecting a handful of users, repeatedly... the same users are having problems.

Other users are completely unaffected.