Yeah, it's Fn + F5 on my Sony and you have to have it showing on only the TV-out for it to work properly.

Right guys cheers for all the help :) I'll try all that!

its to do with video overlay i think...i've had this at work. On some Laptops..you cant have the display on the screen of the computer and on the projector at the same time. There is a function key to press (something like f5 i think) that will stop the image being displayed on the screen and just send it to the projector. Then press the same keys again to get it back

Fn + F5 for example :)

Control Panel, Display, Settings tab, make sure the Display pull down lists the right video card, Advanced button, Troubleshooting tab and there should be a slider bar.

On the laptop mate??

How do i do that??

Turn hardware acceleration off.

Me and the lads are watching the fight tommorow on a huge screen but i was going to show some crackin vids off my laptop before it..

It shows everything until i try and play a video file :( The media player comes up but the screen inside is black..

Any ideas????