I just upgraded my 160gb hardrive on my 2009 MacBook Pro 13 in to a 750gb hard drive. I pressed the power button and inserted the Max OS X Snow Leopard install dvd and turned the computer off. Upon restart, I pressed and held the c key hoping to see the install wizard. Nothing happened. The next go around I pressed and held the option key and there was a box that showed the Mac OS X install option which I selected. Nothing happened again. Since the install dvd is in the drive and I can't get it out nor I can find a way to install the os what do I do?