Help! My flag column in XP has disappeared

[Spectrum1]

My incoming mail flag column in Outlook XP has disappeared. How do I get it back?
I have tried field chooser, but cant find it. Some setting must have changed.

 

[psivius]

First close Outlook. Then from the run menu, use the following command:

outlook /cleanviews

 

[Spectrum1]

Wonderful.
Please tell me what I/you just did. Why did it happen and how do I manage this?

Mike