Bought two MacBook Pro this week - one 15" and one 17". The 15" was perfect. The 17"' trackpad was awfully loud and making not one, but two loud clicks. Exchanged it. Got a new one. Going down to the 15", because I feared that's just how 17"ers are. The screen of the 15" was completely on the left side of the frame with a big black line along the right side. Exchanged it. Got a 15" with a heartbreakingly poor loudspeaker output. Left loudspeaker hardly worked, right one yes. Checking the serial number that unit was produced in April - must have been one of the first ones leaving the assembly line. Checking the serial of the perfect 15" I got earlier this week: made in July. Crisp awesome loudspeaker sound. Can you believe it? Didn't give up yet and am down on my knees that next time, next time I get a properly working unit.