hi all, i've got my new mbp15 i5 for almost a week now and everything has been great so far. however today suddenly the superdrive decided to make a 1-2 second 'seeking' sound at *every* startup. there is no dvd inserted nor have i used it even once in this week. it does this at the grey apple screen at the same time the apple "chime" sounds. i am pretty sure it didn't to this up until today, i am not particularly concerned but why would it start doing this after a week on its own? is it normal and can i turn it off again? i have seen a firmware update for this issue, but that was for 2009 mbp's ..... however since there is an update for this on earlier models made me wonder if it is indeed an issue and not normal behaviour. i tried the reset tip on the apple support page, but to no avail. i think it was dead silent yesterday. thanks!