hiya i just bought a 120gig Western Digital Hard drive it was suppose to be brand new i plugged it into my computer and the first time it found it and was installing drivers i guess but then it wasn't listed in my computer but it was in the hardware profile so i restared and it started making these clicking sounds and now it is not found at all. The only thing i did was change the jumper settings to cs and then when it started clicking i tried it alone on master and together with my other drive on slave that couldn't screw it up could it? does anyone know what could be wrong with it? do i have to format it somehow when u first get it?
any help would be very appeciated.

and also does anyone know what head parking does or what its for?

thanx