Motu 828 mk2 - clock indicator is blinking

[burekas]

hi everybody,
I searched the forum for an answer and didnt find one.. please let me know if I missed something.

I have a problem with my MOTU 828mk2 firewire. It used to work great and I used it with 2 computers (PC and Mac).
Now when I connect the firewire cable from the computer to the sound card the clock indicator (sample rate) begins to flash... the computer does not identify the sound card as a sound device.
I tried it with 3 computers and 4 different cables - same results.
other then that, it works fine when I connect some inputs and use the internal mixer to route the sound out (but I don't need a mixer:)

if the computer is connected when the sound card boots, the boot process get stuck.

you can watch a quick demo that I made here-
http://www.youtube.com/watch?v=AiUcCZpJITo" onclick="window.open(this.href);return false;


spec:
iMac 27, i7, OS 10.6.8, connects via FW cable 9 to 6 pin
PC, IBM T60p,Win XP, connects via PCMCIA FW card, 6 pin to 6 pin cable

I have tried to:
1. do a factory reset
2. play with the voltage button when it was disconnected
3. tried using the card both with 110V and 220V


Any advice will be appreciated!
Thanks,
Itai