Fn keys on my Samsung NC10 not working+?

I have a samsung NC10 netbook with windows xp home edition.

i was using my netbook when suddenly i realised the fn keys were not working. The only ones that work are the volume control and the mute key. The rest, such as brightness control, home and end key etc don't

When I type I also have to press fn for the letters and th5ngs, /;uiopjklm because the numbers in blue come up if I don't.

also if it helps... when i adjust the volume i don't get the old logo wiht the speaker... i now get a display similar to an old TV's volume display... and when i press the mute button i don't get the past speaker with diagonal cross anymore but instead i get a saying 'MUTE'...

And i tried the default button on Easy display manager but no hope. I also don't know how to turn on hotkeys or magic keyboard. HELP

THANKS
 
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