I just purchased a JVC GR-DA30U. It's a miniDV camcorder. However, when I use a 4-pin to 6-pin firewire cable to connect it to my computer, nothing happens. I have the camcorder on and set in "Play" mode, yet it isn't recognized in iMovie, nor does the device appear anywhere on the desktop. I'm running a 2.4 GHz alu iMac with Leopard and iLife '08. Anybody have ANY clue what the problem might be? Thanks in advance.