Hi, I got my mid 2010 imac for about a month... I always leave it on, and set it to sleep when I am not using. Yesterday I went to bed and made it sleep. Today when I woke up, it was off. I checked if any power break happened, but it didnt. I checked the log, and there just says the hour when I set it to sleep yesterday, and than it starts the todays log. I am very preoccupied that I have a hardware problem. What could happened with it ? EDIT I just Found this at the todays log, about the time I started the imac: 16/10/10 12:28:17 configd Sleep: Platform Failure - AC com.apple.message.domain: com.apple.powermanagement.sleep com.apple.message.signature: Platform Failure com.apple.message.result: Failure com.apple.message.uuid: 1C6DA3F6-F7B0-4DF0-9E2F-3E96D9B88E06 what does that mean ?