My contacts sync flawlessly in Outlook 2003 but I can't sync my calendar. No errors are reported when I run the sync and it even goes throught the steps of syncing but nothing apprears in my iPhone calendar.

So I did some research and I only have one of the two COM addins in my Outlook setup (checked by going to Tools - Options - Other - Advanced Options - COM Add-Ins). I only have 'iTunes Outlook Addin' and nothing else. I understand from other threads that it's also meant to have one called 'Outlook iTunes Sync Addin'. Can someone confirm this and tell me .dll it points to please?