I have Outlook 2003 SP2 running as a standalone client (no Exchange server).
Recently (past two days or so) I started receiving the following error when saving new calendar appointments:
Unable to save free/busy information. Unable to open the free/busy information.
PS - I suggest the addition of the following under the list of options for point assignment:
0 This problem is extremely annoying or is bugging the crap out of me (1,000 points)