Thanks mixture.
Just two points; it wasn't me that killed it, it was my Chief Pilot and I did play with calculators at school, making rude words when viewed the wrong way up!
Thanks again for the reply, will search the cost of spares as I think I know someone thatwill be able to fit it for me.
Seems ashame that it looks like most of the screen is replaced, when it seems that there is only a very thin film inside that seems damaged.