Thanks guys I got it sorted. Two things though
1. Sometimes when I have selected the TV Monitor as the main display the mouse dissapears and appears on the laptop but cant be seen on the tv? I dont touch anything but this happens, eventhough sometimes it works fine and I can see it on the TV, when it appears on the laptop I can no longer control the computer by clicking on icons etc. How do I fix this?
2. How can I resore my laptop display back to normal, icons look a bit dfferent eventhough nothing is connected?