My MBP's config: MacBook Pro MacBookPro3,1 Intel Core 2 Duo 2.4 GHz 8600M GT 256MB Just bought a drive bay and insert my new 500gb hdd into it but won't work. then I change the old 250gb fujitsu and it works perfectly. the 500gb wd works fine when i put it into the external usb case and plug it into the usb. any buddy hv any idea wat's wrong with it? thx!