Token Expiring Issue
 

Hi, a few members of my forum have explained to me a problem they have been having. They cannot reply to a thread whatsoever without getting this error:

Code:
Your submission could not be processed because the token has expired.

Please push the back button and reload the previous window.
Any ideas anyone? I have asked them both to clear their cache, and they both said it did not help.

Thanks,
Curt