so after lurking and reading a ton of info on the various forums here i finally have a question... yesterday i had my CD/DVD drive replaced in my 24" iMac. when the tech guy had the computer torn apart i noticed that the Apple logo on the bottom of the frame just below the screen, on the backside has a blackish clear tape over an oval shaped hole in the middle of the Apple. i asked the tech guy if there was supposed to be a LED light there or something and he said no. anybody know why there is a hole with tape over it on the Apple logo? maybe for a light or a camera??