For some reason my outlook calendar that I have been using for 4 years
refuses to allow me to add appointments, events to any date.  I cannot edit
any existing dates.  Double clicking on the date produces nothing.
Right-clicking will produce the menu, but clicking on the menu produces
nothing.

The only thing slightly different is that I have been using Active Sync to
sink with my new phone.
As of now the calendar is useless.  The rest of Outlook program is
performing normally.

Any ideas?