Hi NG,
me too! I've Outlook 2003 on XP Prof (both updated to the teeth) with an
Exchange Mailbox (SBS2k3 also up-to-date). I can open appointments for the
first 1/2 hour or so after opening Outlook, then without an error or comment
it just doesn't open the dialogue anymore. However, when I open a shared
calendar, I can work normally. I've reinstalled Office, cleared the cache,
deleted Frmcache.dat all to no avail.
All ideas appreciated before I call Redmond!