February 1, 2008: My refurbished, white, 2.2Ghz MacBook arrives. Everything is basically as it should be, except that the lid let the backlighting shine through all around the edges, and the iSight camera wouldn't record video without picking up interference "chirping" on the audio. I guess this is supposedly due to the mic and iSight interacting. After an ordeal with AppleCare, I was able to get a direct exchange. I later upgraded to a 2.2Ghz MacBook Pro instead. February 13, 2008: My refurbiushed MacBook Pro arrives with bottom 1/3 of the display yellowed and dim, daily kernel panics, and failing to wake from sleep half of the time. Also, it had the inevitable MBP defect of the audio hiss/beeping from the headphone jack. After a bit of hassle, I was granted an exchange on the night before the Penryn releases, but I asked for a refund instead in order to get an imminent Penryn MacBook Pro. March 6, 2008: I purchase my 2.4 GHz Penryn MBP. It had a horribly sealed case all around, headphone hiss and beeping, and fan/CPU whine. I returned this MBP no-questions-asked for another Penryn Pro. March 14, 2008: I get the new MBP, only to see a case that has even worse case separation, headphone feedback, the same whining, a couple of kernel panics, dropped wi-fi connections, etc. After MUCH difficulty, I was able to receive a refund. April 1, 2008: My refurbished 2.2 GHz black MacBook arrives. All is basically well, except that I can't get over how much dimmer the screen seems compared to the MBPs LED backlighting. Also, the iSight camera picks up even worse chirping noise than the original white MacBook. I am using fairly high-end Sony MDR-7506 headphones, so they weren't the source of the hissing and beeping, plus this issue has been documented here at MacRumors. I also did multiple erase and installs + other procedures on each Mac in order to try and fix the problems. I can barely stand the fact that this MB's iSight/mic has the same defect. I don't know if I should even try to get something done about this at this point, especially as I'm not sure that any of the recent MacBooks won't have this issue. What should I do?