I just got my Powerbook 15" a few days ago. LOVE IT! Been using Macs for about 10 years or so at my work, first time Ive owned one. But has anyone had any problems with the SuperDrives...or any drives for that matter. When I put discs in, it tends to spit them back at me sometimes...and when the drive accepts the disc it seems fairly loud. Is this normal? Are you supposed to put in in halfway and then let the drive pull it...or push it all the way? Ive tried both. Help. I want to know if I should take it to an apple store or not.