I think i already discussed this issue on a tread
Ill have to search for it
The thing ist hat the date wont work on EI, Chrome, or opera, it will just work on mozilla
It a bug and you need to upgrade it to 6.1.2.x( just upgrated it to the lastst one on the 6.2.1.x)
the issue its on 6.1.3.9 and 6.1.3.10 i bealive
Cheers
Carlos