Yup, might've been me ;) This usually happens when either your system date/time are wrong, or your cookie has become corrupt. First off, check that you have your time and date set correctly. If they are correct, then log out from the site, delete your cookies (depends on your browser how you do that) and log back in again. Doing these things corrects the problem 99% of the time. The other 1% it's usually down to transient problem on the internet at large, which might be the case at the moment given the huge amount of extra traffic flying around thanks to the recent worm and virus attacks. Kev.