iPhone message security

When I receive a text message on my iPhone it appears automatically on my screen. I don't want this to happen as anyone can read the message if it is left on my desk. Is there anyway I can disable this function. When I get an email it just vibrates and doesn't display the message which is what I want it to do with my text messages as well.

Macnewbie

Go into settings, then onto passcode lock put your combination in then un check sms preview

Cheers Blackadder,

This site has never failed me...

macnewbie