so i got my sgp 3.6 refurb that i ordered from amazon the other day. it is a pretty nice little player. screen could be better as could a few other things, but that's a whole other topic. i was wondering if anybody else, who has an sgp 3.6 or any model for that matter has noticed an audible click noise out of the speaker that happens randomly as you navigate through the device? it seems to happen a few times every couple of minutes after i click an app or something and seems to only do it when i have the sound on for the audible click. (although i am not talking about the normal click itself) it is not that loud and i don"t think it warrants sending it back as it seems to function perfectly otherwise. just curious if anyone else has experienced this?