my colleague has 'lost' his .pst?

[spellcheck]

My colleague logged on and was unable to open his usual .pst. He still has an
account but it appears like a new one, where did his other one go? I would
like to reinstall it but am not certain how.

 

[K. Orland]

http://www.howto-outlook.com/howto/backupandrestore.htm

This will tell you how to look for and recover the PST file. Let me know how
it goes.