I'm on my third MacBook Pro and all three of them keep waking up from sleep mode. I have reformatted and reinstalled the OS each time. I have reset the SMC and the PRAM. Still no resolution. It happened again this morning and I started digging thru the Console logs. I found this... 10/29/08 8:33:11 AM kernel Wake reason = OHC2 Can someone please tell me what the OHC2 code means??? I have no idea where to find the documentation on these codes. If I wake my computer up from sleep by pressing the power button, the Wake reason code is PWRB.