It's only an 8 month old mid 2009 uMBP (2.26ghz, 4GB, 500GB) I was using the Disk Utility when it asked me to insert my MAC OS X Install disc and press "c" during start up and repair it. PROBLEM: Every time I insert the disc and press "c" my screen goes completely dark. I thought it could have been a problem with the sensor so I flashed a light into it but it didn't work. I even tried putting it directly towards the sun light and still it doesn't work. Is there a fix for this or should I take it to Apple Store? I still have my free 1 year warranty, it didn't expire yet.