Microsoft prompted me to upgrade Microsoft Office. When I said OK (and I have been doing this quite regularly), the upgrade process aborted with the message :

"MS Outlook cannot load MS Office shared libraries. The files may have been moved from their original locations. Try the following:

• Move Outlook back to the MS Office folder
• Re-install Outlook to insure that all files are correctly installed.

We have reinstalled the outlook ,but still we are not able to find the mails.