Outlook 2000 crashes when selecting a contact

[Mark]

Hi,

I have been using my contacts list for a long time and a
few days ago when I tried to click on one of my contacts
it caused Outlook to crash with the following
message: "Outlook has caused an error in MSO9.DLL, Outlook
will now close". I have tried to repair it by
uninstalling outlook 2000 and re-installing from CD. It
did not work, I then deleted MSO9.DLL and used the reair
facility to put back the DLL from CD and it still did not
work. Any suggestions would be greately appreciated.

Mark