I just got my replacement MBP to fix the CPU high pitch issues as well as the screen inverter issues. Now the high pitch CPU whinning sound is still there and my optical drive seems to try to read a non-existing CD three times before giving up. It does this everytime the machine boots up or awakes from sleep. Has anyone else run into this issue? I hope Apple gets these fixed soon. I love the MBP but hate all the issues.