Clock out of synch with server

Getting the following error message - 'clock is out of synchwith server...' This just recently started showing up on numeroususers machines. We have been using PDMWE since 3/07 (seven months)and this is popping up. Simple fix is adjust computer clock so itis not out of synch by more than 30 sec.

However, one user will reset their clock and then after workingwithin PDMWE (checkin checkout etc of various file types) thismessage will pop back up again, usually 20-30 minutes later.

Anyone have an explanation for this latter issue, why afterresetting does this happen again?

I don't like the fact that the clocks get out of synch to beginwith but 'oh well'.

Any suggestions on eliminating this issue altogether?

Thanks, TimSolidworksSolidworks Pdm enterprise Pdm