I just installed a Seagate 500GB 7200 drive into my MacBook Pro and the entire MacBook is vibrating, which was no there with the stock 5400 drive. I've read a number of posts on this subject, so obviously many people have encountered it. There are mentions of this problem on Amazon reviews and many places elsewhere. Has anyone heard of a fix? I cannot find one in the forums. When I push down firmly on the surface of the MacBook above the hard-drive, the vibration disappears completely and the laptop is as still as a stone. Perhaps if I put some padding on the surface of the drive? I would love to go with the faster drive, but if the vibration continues with no ideas, I will either get used to it or replace it with a 5400, which I have read reports that that eliminates the vibrations. Any ideas would be appreciated. Thanks! Also, apologies if this post is in the wrong place...first time posting.