When I add an appointment on my pocketpc, and then sync with my
desktop, I am unable to invite attendees to that appointment from my
desktop. The meeting request just sits in my outbox, and I get a
generic send/receive error. If I invite them from my pocketpc, it
works just fine.

After inspecting the meeting requests, I found that the ones I create
on my pocketpc have no organizer (the field is blank). I'm pretty sure
this is the problem. Any ideas on what I can do to fix it so that I
can create meetings on my pocketpc and later send the requests from my
desktop?