Running a Macbook with a Mini-Display Port to a VGA connection in my Plasma tv.
It was working fine and now it has just stopped working, the tv is receiving no signal.
I tried fn + all the f keys but it isn't working, their is no response, the computer recognises that the cord has been put in it but doesn't transmit or mirror on the screen.
The only tabs coming up in display preferences are Display and Colour, before there was a third, really would appreciate help.
