Hi all, I've searched the threads but can't find an answer to my problem. I have two problems really but am hoping if I can fix the first, I can work out the second with existing information on the forum. I have a WD 500gb external drive which I use with my Powerbook G4 through firewire. It works fine but now I can't seem to use any other external drive. I tried connecting another WD 320 gb external drive which I am plugging in through USB, but get nothing. I also tried running my other mac (Ibook G4) in target mode to access information on its hard drive but have the same issue - the Powerbook just won't recognize/mount (i.e. I can't see it in finder or desktop or disk utilities). Any guidance would be greatly appreciated.