I found a problem that seems to start bothering me and i have an appointment set up with the "genius" bar. It looks as if when my system is put to sleep either by timeout or by closing the lid, sometimes when i wake it up by pressing enter, the screen doesn't turn on. When look carefully at the screen, it is actually on. It's just on the lowest brightness setting. What's also interesting is that the apple logo is not lighting up which means the backlight is not on. To remedy this. I just simply close the lid, i wait, re-open and press enter to awake from sleep. I don't know if this is a software issue or hardware but I can't be the only person to see this issue. if you look carefully, you can see the bar on the top indicating that it is on. I used an app on my iphone to increase brightness, maybe this will help this is a photo with flash to show that it is on.