Hard drive changed but not seen on the disk utility
I bought a new hard drive for my macbook pro 13" unibody 2009, i bought a Western Digital Scorpio Black 750Go, to change my poor old 160Go.
I've installed it correctly on the macbook pro, and when i put an install cd, it's not seen by the utility disk.
The only thing it sees is the optical drive, not the hard drive.
When i put the WD Drive on an another mac (or pc) as an external drive, it works.
Does this disk not compatible with my mac? or is it something else?