I just got a new PowerMac dual 2.7 and was hoping to hook my Canon ZR60 up to it and use iMovie to edit home video. However, iMovie can't tell it is hooked up. I've gone through all the troubleshooting tips in iMovie and nothing helps.Tried two new Firewire cables. I can see "DV in" pop up on the camera screen when the cable is attached from the camera to the Mac. Anyone have any suggestions?