I've been having this problem for over a year now and it's becoming very annoying. I have a 21" Early 08' iMac and every time the power goes out, I'm forced to do a SMC reset. If I don't, the Mac is unresponsive and doesn't do anything. Not sure if this is normal, but I highly doubt it. Is there an alternative to fixing this? Or should I just keep doing what I've been? Thanks.