E-mail backup to .pst file

[Bob San]

This is probably a very basic question. I work with MS Outlook 2002.
It was originally set-up (by the person who sold me the computer - wh
is no longer around) to automatically back-up the entire Persona
Folders to a .pst folder. The backup occurred every time I logged of
Outlook (if there had been any changes made in Personal Folders durin
that session). When I shut down Outlook I would get a query "Do yo
wish to run a back-up" and I had to select "yes" to run the backu
(this may not be the exact wording of the query, but it's essentiall
correct).

I do not do Archiving. I only do the above backup operation.

Recently I no longer get the prompt to run the backup when I exi
Outlook. I'm assuming that the backup is not happening ... that it ha
somehow been turned off. How can I re-activate this automatic backu
function?

In my Outlook Data File/Personal folders files (*.pst) I have th
following files:
Archive.pst 767 MB modified 11/16/12
Outlook backup.pst 1.17GB modified 11/4/12
Outlook.pst 1.19GB modified 11/16/12
Personal folders (1).pst 32 KB modified 11/16/12

Any help would be most appreciated.

Thanks, Bo