Well i have had my macbook for about 6 months and I recently installed all the updates that come up in the I guess update wizard... I left to work while it was doing so. I returned home to it turned off, and I tried turning it on and the screen flashes then goes black then starts making some odd noise from the right side of the laptop sounds like a drive trying to read something but it only lasts for like half a second and then repeats that sound... I cant get it to turn on!!! any ideas?