I have a new 2.8ghz MBP and only with certain sounds as other threads have stated, the right speaker will rattle. I mainly notice it with the 'hero' tone which I use for new mail, and I also noticed that if I push down a little on the right speaker grille it clicks a little bit. I posted in the other recent thread about it but nobody responded.... Is this an issue every mbp has at this point? Its definitely not the speaker since something is rattling in there... Has anyone had this fixed, or replaced with a computer that doesnt do it? Lastly... what sort of time frame do I have for swapping it for a brand new one and not a refurb... This computer was not cheap, so I'd obviously prefer to receive a brand new replacement if thats what needs to be done. Thanks!