I just got my 12" Powerbook 1GHz last Thursday and I am completely satisfied with it. But I have a question for all you other 12" owners. When I am using a USB mouse when I scroll or run the pointer over the dock (icons set to magnify on rollover) there is this little noise like a motor running when I move the mouse; and ONLY when I move the mouse over the dock or scroll w/ it. When I use the trackpad I dont have the noise. Its weird its almost like the HS is being access constantly when I move the mouse over the dock or scroll through a document or website. I dont think this is the case, I feel it is probably an interference type thing, but does anyone else's 12" do this?