Apple "Flagged" Mail Folder Help!

Hi All,

I set up some smart mailbox folders & named them "Flagged Mail" so I could quickly find & refer to all such messages. However nothing appears in this flagged Smart mailbox folder so I still have to scroll down & manually find them.

I followed the steps as described on various guides - I right click any mails I need as flagged & a flag symbol appears next to it. I then went to Mailbox > New Smart Mailbox & set it up.

The new Smart Mail box appears in the drop down menu but there is nothing in it - can anyone tell me what I am doing wrong?

Many Thanks,

Bazzy!