2.0 GHz Unibody Macbook, 4GB of Mushkin RAM, etc etc. Was running the stock 160GB 5400RPM drive, with no real issue, just limited space. I just installed a "Factory Recertified" Seagate Momentus 7200.3, 320GB, 7200RPM drive. I had it in my old MBP and it clicked sometimes, so I RMA'd it and this is the new drive. My geekbench score just after installing my 4GB of RAM(with the stock HD) was 3037. My current geekbench score(with the 320GB Seagate HD) is 2998. Any ideas why?