characters mixed

[bigdan]

im on a friends laptop. since yesterday for some reason pressing certain keys makes different characters pop up. for eg if i press 'p' i get a * if i press 'u' i get a 4. this is not the case for all the keys, just the ones on the keyboard that actually have these letters written under them. pressing the 'Fn' key stops this problem but only while its pressed. im holding the fn key with my left hand in order to type this with my right hand.
plz help!
thanks
Dan

 

[office politics]

look for a fn lock which would work like a caps lock key

 

[bigdan]

num lock did the trick. thanks!