Hey guys! Basically, I'm on my 5th mba so it's quite embarrassing to want to take this machine back as well. 4 of these are from the apple store. 1st one was online. I bought one from the store, returned it a week later for a replacement as the screen gradient was quite a bit larger than the display models. The second one i returned the same day due to obvious speaker buzz. The one after that had the same problem! So I took that back the next day and got a refund. The next week I went back to the store and bought a new one, i checked it out in the store and was happy with it, the screen only had a small gradient and I couldn't hear any speaker buzz. After I got it home, I did start to notice speaker buzz but only on very few sounds. I decided to forget about it and think, hey I'm happy with it i'm not really going to even notice it. But now I've had it for longer i'm noticing it on more and more sounds. I happens on speech sometimes from youtube and on love film. For example I was watching napoleon dynamite (hah unfortunately) and at normal listening volume you could hear a metallic zing from the right speaker under the enter speaker. I know I can take it back to the store but I feel really embarrassed about it. I've had one mba out of five that didn't have this speaker problem, I think I must just be unlucky. Can anyone make me feel better about returning this? Has anyone returned anything five times!? I've delt with the same guy a few times now and he's really helpful, I just hope he's not there if I take this back as I think he will think i'm insane. I'm happy with the screen on this model and it doesn't creak or anything (no idea if its samsung or lg) but the speaker is irritating me. Bah. Would you take it back?