I just noticed today that the bluetooth is no longer working. The utilities say no hardware found. I used to use my BT mouse all the time perfectly. I'm not sure if it's the cause, but my laptop would sometimes turn on while inside the carrying case and maybe that causes overheating. It also always freezes after about an hour or two of playing World of Warcraft on it and requires holding down the power button. I'm going to take it in, but here's my question. I have bodyguardz covering the entire thing. Does it void my warranty? I can see apple saying the protection helped overheating since it can't transfer the heat through the aluminum to the air or whatever. I'm wondering if I should remove it before taking it in or not. Thanks!