Warning: Some characters will be lost. - Kmail

[Steven Vollom]

Intrepid KDE 4.2

Many times while writing an email I will get multiple interruptions with the 
warning it the subject line.  It further reads:  Not all characters fit into 
the chosen encoding.  Send the message anyway.
                  (Lose Characters)               (Change Encoding)                                               

I neither understand what the encoding is about nor know how to change it.  
Each time it happens I click on (Change Encoding) to not lose any data, but 
it happens too often and interrupts the typing of the email.  Even if I knew 
where to change the encoding to make things work, I would not know what 
to change it to.

Steven