About Dual Shock 2 (USB) PC controller

oops2001

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Dec 12, 2009
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Hello,
I have bought a dual shock 2 pc controller..its working fine..but there is a button in it which says 'analog'. I have read somewhere that it increases ACCURACY/RESPONSE stuff....so please tell me more about it....and...m confused about the names of the buttons nd axis..whenever i try to configure them in the game...how to map them accurately..like for need for speed most wanted....and when i am playing the game and i press 'analog' mode..the mapping of controllers automatically change...

Thankyou so much...(m sorry if i posted it in wrong section)