I have a powerbook G4 running Panther and Mac Mini Intel running Tiger. I use .Mac to sync iCal. But there's 2 hours difference in the times between the Mac Mini and the Powerbook. Both machines have exactly the same time zones and time. I've tried both enabling and disabling timezone support, but it made no difference. I'm stumped - Can anyone help? One more thing - my "sync chain" is normally Outlook on Windows PC -> PocketPC -> Entourage on Powerbook -> iCal on Powerbook via PocketMac GoBetween ->iCal on MacMini. The times are wrong only between the two macs, but just in case something further down the chain is making a difference.