I have a 23" ACD connected to my MBP. This morning I woke up to find my MBP had crashed. I had to use Command-Control-Power Button to restart. But then I noticed that the power light of my ACD was off, and it wasn't coming on. I have an external keyboard that is plugged into the ACD, and a wired mouse plugged into the external keyboard; both of those are working (not sure if that means anything). I tried resetting the PRAM on the MBP, but that didn't help. Any ideas?