I've been googling my situation for a few days now and it seems like either I am describing my problem differently than others, or my situation is not quite the same, so I am posting here to see if anyone can lend a hand.
I have an SBS 2003 (Exchange 2003) server and one user with Outlook 2007 and an iPhone. The problem the user is reporting is that not all calendar entries are appearing on the iPhone; they are guessing one or two out of every ten.
Seemingly it is the events created in Outlook 2007 that have the issue; events created on the phone and in OWA seem to sync just fine.
I have found that in OWA, the problem events cannot be viewed; instead of event info, I recieve an HTTP 500 "page cannot be displayed" error. I assume this is tied to the iPhone's inability to pull down the calendar entry.
Interesting, if I open the mailbox using Outlook 2003 on the server itself, I can see even data.
I have recreated outlook/iPhone profiles, toggled cached mode on and off, and rebuild Exchange virtual directories (there were other reasons for this, but I thought it would be a nice side effect to fix this issue), yet the issue persists.
Any thoughts or suggestions as to what else to try?
Thanks in advance!