i recently purchased a mbp 2.33ghz laptop and things were great. now, it seems whenever i close the lid, the led light never pulses, but rather stays solid. then, when i open the lid, the screen is dark and will not wake up. however, the keyboard seems responsive and i can hear volume noises when pressing the volume up/down keys. if i try and go to sleep from the apple command thing, the screen goes black but stays lit, and freezes with a spinning colorwheel. the only way i have found to recover the computer is by holding down the power button and restarting it. this is beyond frustrating. any help would be much appreciated.