Recently I am unable to add new or even open existing appointment.

[Eric]

I have successfully been using Microsoft Outlook for many years. All of a
sudden, I am unable to open existing or add new appointments to my calendar.
When I click on an exiting appointment, nothing happens. When i click the
add new appointment icon on the tool bar, nothing happens. Do I have too
many old appointments taking up memory and if this is the issue, is there a
quick way to archieve or delete old appointments?

 

[Skclarey]

I have the same problem, did you get an answer? All of a sudden I can't add
any more appointments