Mac O/S 10.4 Leopard (latest that can be installed on the old G4). Windows XP Home with SP3 Problem: Working fine on both platforms as a large USB drive. Today it would not mount to the Mac, but still works fine on the PC. The Disk Utility on the Mac can see it and recognizes it as a 493GB Extern…

500GB Passport no longer visible to Mac, works okay on PC

Alucardx23 January 3, 2013, 11:09pm 2

Be sure to connect the passport directly to the Mac, avoid using extension USB cables or USB hubs.