Slitherine

Sorry about posting this here, but I'm not sure where else on the forum to mention this.
I've actually had this problem ever since I first came here when I did extensive testing on the Battlefield Academy project.

It seems when I hit the submit button to post a message, I have to always hit it twice because the first time all I get is:

Invalid Session. Please resubmit the form.

Anyhow, it's not a big deal, just wondering if there is something simple I am missing to adjust to remove this little issue.

It only happens when you're using quick reply to post a message.
I've this since day one, but didn't bother with it.

I've had this problem for ages, too. The work-around I use is to hit 'Preview' first, then 'Submit' and the error message doesn't seem to occur.