This has been happening since day one and I have no idea why or how to fix it. I use Outlook 2003 on a XP machine and sync my iPhone directly with iTunes. My office has Exchange 2000 and the 3G doesn't seemt to connect to it (or at least I haven't figured it out yet). I tried out the MobileMe trial to see if I could at least sync calendar and contacts but I understand you need a paid version to sync those items. Considering all that has been written about MobileMe, I'm holding off on paying anything for that service. I did try to sync MobileMe several times before figuring out that only the paid service works. So MobileMe is running on my computer but I have disabled the Automatic or Manual sync features. For the past 3 days, as calendar events pass, they disappear out of my Outlook Calendar. No idea why? This never happened before I bought the iPhone and started syncing so it has to be related. Is there an option somewhere in iTunes that you can choose to remove calendar items when they are past? That makes no sense. What's even more confusing, I read in another post that someone was having a similar problem but they observed that the calendar items still appeared in the Outlook Today summary page. I found the exact same thing. So the events are still in there somewhere and they show up on the summary page for the day but they no longer show up in the Day, Week, Month view in Outlook. Does anyone have any clue why this is happening and, hopefully, have a solution? I'm thinking it must have something to do with MobileMe because I have sync'd my iPod touch for the last year with this computer through iTunes and a calendar event never disappeared. MobileMe seems to be the only new variable. Any assistance would be greatly appreciated!