Hello. I have a White MacBook version 3,1 made in 2008 w/ the intel ICH8-M AHCI SATA controller. Unfortunately this controller is only 1.5gb/sec. I picked up a WD7500BPVT, WD Scorpio Blue 750gb, with a spec of 3gb/sec. Western Digital tech support assured me it would step down to 1.5gb/sec, no jumpers needed (as it isn't configurable by a hardware jumper). So I install it in my MacBook, boot up from the Snow Leopard install disc but it doesn't see my fancy, schmancy 750gb drive. Is the drive not seen because of a compatibility issue w/ the SATA controller? If so, what is the largest capacity 9.5mm drive someone has installed in a MacBook w/ the intel ICH8-M AHCI SATA controller? Many thanks.