Problem with thinkpad keyboard

[faz]

Hi...

I have a thinkpad R 40 which i bought earlier this year...and in the past couple of weeks some of the keys have stopped workign properly...i have to press it a couple of times to get it to work..i am guessing it's probably because there's dirt under the keyboard...can someone tell me how to safely remove the key without breaking anything?

any response is appreciated...
Thanks