I've had my Macbook Pro for almost 3 years next month and have never had problems with it. However just starting this week my screen is having problems. When I turn it on, sometimes I'll hear the startup music but the screen will still be black. Or the sleep light will come on, no sound, but the screen is still black. So I hold down the power button till it turns off. Then I push it again and this time it starts up normally and the screen comes on. When it goes to sleep for a long period of time, the screen will still be black when I try to wake it up. The sleep light will be on though. So then I have to hold down the power button to shut it off. Then turn it back on and the screen will come on. Anyone have this problem before? Solutions to this?