Mine arrived today, and the LED bar is not working. I have tried on several different USB ports, and I know it is not working because my camcorder doesn't see any of the LEDs on.
I took a closer look at the PCB and think I found the problem. I believe the USB cable that was shipped with my LED bar has the red and white wires swapped. The red wire carried the 5V and the white doesn't. Looking at Andy's pic on his site it appears that the red wire is suppsed to be on P1 (the pin opposite the black wire).

Mine has the white in P1, and the red next (attached pic). So I think it is not getting 5V. But before I try to swap them, I wanted to confirm with someone else. Can someone check?