I'm sure this question has been asked and answered, but I couldn't find exactly what I was looking for, so here goes:

My boss got a new computer. All of his Outlook data from the old computer was saved into about 5 gigs worth of .pst files in the form of about 15 files. However, when we open up Outlook in the new computer, click "File", "Import and Export," "Import from another program or file," and "Personal folder file (.pst). Then when we browse for the .pst files, a new folder appears in his Oulook, and then disappears immediately when we click "Finish," and nothing imports.

How can we get everything imported?

Thanks