Zune not working on Desktop USB

I was not able to setup my Zune device since I bought my new desktop PC.

I downloaded and installed the latest version of the Zune Software, removed and reinstall Zune driver, nothing worked!

Symptoms:

– Connect Zune to the PC with the USB cable
– Zune software launch
– Get the message : “Searching for device…” and then…… nothing happens!

No way to find out why!!

Tonight I found the solution : I plugged my Zune through an external powered USB hub (and not directly on the computer) and now… it works like a charm!
My USB ports are working correctly, but I suspect them to not supply enough power for a Zune…