Mac BT KB entering keys by itself, random?

My KB has started playing up in both SL and Xp. It will enter random keys and when booting up and down the computer speakers make odd noises like the volume keys are being pressed lots.

I have checked the batterys and they are all good. Any ideas?

lols such an expensive KB needs a skin protector? great design !

thanks, ill chuck it in the bin and add to the waste.

but seriously, they do look good.