Since I am one of those early adopters, I've discovered a couple of bugs in Entourage 2004: Internet iCal Invites: E2004 does not properly translate Internet iCal entries generated from Lotus Notes. Entourage X used to do it perfectly, but E2004 seems to have broken it. Major inconvenience for me and my Mac customers who want to keep their Notes and Entourage calendars synched. Preview Pane on Right and "Display Relative Dates" Option: If you have the Preview Pane on the right, the message view will always display relative dates (Today, Yesterday, etc.), regardless of whether you have the option selected or not. The odd thing was I had it de-selected in Entourage X, and it worked fine with the right-hand preview, until I toggled the switch.