Hello,
I have a creative zen mp3 and have already installed the software for it but when I plug it into my usb hubs it doesn't work. i have tried many devices on my hub and they are working fine also I have tried plugging it directly but still nothing what the matter?
In most cases the problem lies on the cable connector try to replace it with another one to see if it will work, if not the problem is with your device so try to return it to the manufacture.
and still doenst work ..