After I wake my comp up from being "asleep" I hear these clicking sounds, like the HD is spining down and then spining back up again when I start forcing the disk to access. For example, I'll be browsing a web board like this one and I'll hear it click as if spining down, then when I click on another topic or something I hear it click back into action again. Is there anything wrong w/ putting the comp to sleep in OS X that's causing these clicks? I know it's from the sleep mode because it didn't happen before when I was just using the screen saver. I have neither sleep nor the screen saver set to automatically turn on. My setup is a g4 533 w/ a Rage card and 512 mb of ram.