What does that mean? I’m getting this message since the past few logins after I click submit button.
Jansi 
(BOB member since 2008-05-12)
I’m getting this now, too. I will click “Submit”, and get the error. I click the back button, click “Submit” again, and it will post. I was wondering if it had something to do with my set-up here, as our corporate security settings are a little weird.
Lugh (BOB member since 2009-07-16)
I have been experiencing the same problem for a quite longer period of time too. Going back in the browser and then doing the same action look as a fix.
Marek Chladny 
(BOB member since 2003-11-27)
Clear your internet cache / cookies is always a favourite for problems with the website.
Nick Daniels 
(BOB member since 2002-08-15)