Cannot reopen Outlook
 

We are running Windows 2003 sbs with win xp prof workstations. I just
migrated from Outlook express to Outlook and the transition went fine. I'm
not sure what I did but the PRogram closed and now can't be reopened. Here
is the error message; " Cannot start Microsoft Office Outlook. Unable to
open the Outlook window. The set of folders could not be opened.

What to do?

Thanks for your interest and help.

--
M. Cooper