Can't Access WD Passport 1TB

Hi,

Just bought new Mac Book Pro OSX Mountain Lion. My problem when i plunged in external hard disk to Mac, the icon didnt appeared as usual. Check on devise also didnt appeared. Use old mac OSX Lion and PC, It’s work. Please advise. tq

Hi,

When you connect the drive to the new computer, does the drive spin? Are you able to feel the drive?