Anytime I have my white macbook plugged to an external monitor, and I have my earphones on, I lose a slight amount of sound from the right earphone. Maybe it's been happening for a while, but since I only started using headphones with my macbook recently (working at night), I just noticed it now. This is really annoying. Does anybody know why? How can I fix this? Removing the minidisplay connector solves it, but then I have no external monitor. I've modified my macbook a few times since I got it in early 2010. So maybe I messed something up. It's the best computer I've ever had, and I don't want to upgrade to a newer one yet - I know it may sound weird, but I preferred the white macbook over everything else.