Cheers both of you for advising me. I hope I can use this site safely from now on. I hope your comp got sorted after a virus tried to mess up your system. I will take caution from now on.
PS. Do any you use "windows media player classic"? If you do, do you know how to improve the clarity of the picture whilst film media is playing etc? Sometimes it goes pixelated and when I installed it I just set it to default as not to mess it up. I know some media films will have better quality than others. Do I need to change a setting here or there? It obviously improves if I make the viewing window samller but I want full screen. Can you guys help? Thanks.
*note* I use a 20.1" NEC monitor with 8ms response and have it set at 60Hz refresh and resolution of 1680 by 1050.