I just got my dvx100b, still under a 90day warrenty. I was able to use the firewire port on the camera just fine to capture video and dv tapes, but now i cant get it regonized by any computer....weather its from windows xp or mac, it wont show up. I also changed the cable and it still wont show. I tried turning everything off and on in different ways but nothing seems to work. what should I do?