I have a 15" 1.25 GHz PowerBook running OS X 10.4.3. I want to transfer some information off a friends external USB 2 hard drive onto my PB. It is an HD that was used with another Mac. I connected it to my computer and on comes the green LED. No drive gets mounted though. With the HD connected, I restarted the computer, but that didn't help. I used both USB ports, but that didn't help either. I checked in Disk Utility, but only my own HD shows up. Any one have any idea what's going on? Anything that I can do to rectify this problem? TIA. Edit: Sorry if this is in the wrong forum. Mods, please move to where it is appropriate.