I had the same problem and posted that story here 7/12/2006. I not only fried the FW port on my original 500Mhz PB but when I got a replacement, the same thing happened. In both cases I had used the same FW cable and a fairly new external HD. I'm pretty sure it was a bad cable. I bought a $20 PCMCIA card with two FW ports but it did not work with the original but does with the replacement PB. I use it every time I make a SuperDuper backup. So there is hope. However, you won't be able to use FW Target Disk mode any more. Bob Fowles, Centre County, PA At 8:47 AM -0700 11/12/07, Randy Suinn wrote: >hi all, >I have a 15" titanium (500mhz?). One day my firewire port stopped >working. The ext drive spins up but the volume doesn't mount to the >desktop. >I tried another firewire device and another cable to no avail. FW >device never appears in the About this Mac. >btw, laptop was running off of AC each time becuz my battery is almost dead. > >Could the port be fried? > >And if so, is there a way I can fix it myself? > >TIA! >randy >