Hello, i've noticed in the last days that my laptop's hard disk (WD 40 GB) is making a weird sount, like...restarting.It does that when it's not used (not writing on it at the moment) and it happends on both mac os x tiger AND linux.dmesg command says nothing.The hard disk is new (2-3 months), the old hdd did the same for a while then it crashed.
Does anybody knows what it is and how to solve?