I have a new black Macbook C2D and was very happy with it for a couple of weeks.... until I noticed that I was having some strange issues with my 3rd-party Firewire drives. I have 2 drives that have been connected to my old G4 for a year or two with no problems. I also bought an AcomData 60GB Ondago drive to use for travel backups, etc. I daisy-chained all 3 to my MB and began using them right away. Initially, one or another of the drives wouldn't mount on boot. The Finder would display the Disk Unreadable window with the "Initialize", "Ignore", and "Eject" buttons. I would click Ignore or Eject and try again. Eventually, I got it to mount and thought it was just a glitch. However, after several days, I noticed that some of the files on my AcomData drive would display corrupted data, e.g. a JPEG image would only display half the image and the rest would be garbled or Quicktime videos would be mangled and then Quicktime would quit suddenly. I attached this drive to a friend's MB C2D and he had no isssues. We tried different cables and different ports on the same drive, and copied the same JPEG files to it multiple times, but still had the same results: crap on my MB; fine on my buddy's MB. Then I tried using the USB port on the same drive and everything worked fine; no issues at all. So I tried similar Firewire-connected tests with my other 2 (older) Firewire drives and had no issues at first, but then they started flaking out too. In fact, one drive got so bad, I saw files just disappear from a folder and then the drive wouldn't mount anymore. Now it has directory structure problems I can't fix with Disk Utility. Has anyone experienced similar issues? I'm wondering if it's my drive or my MB. In fact, is it possible for a Firewire drive to hose a Firewire port on a Mac? Thanks!