Hi,
I just received my pico and the device was not recognised by my windows 7 pc when I looked at device manager, it just said unrecognised, and I could not use eigen D. Lucky for me I had windows vista build on same drive and it worked, otherwise I would have sent the device back as being faulty.
To fix the problem, goto :
C:\Program Files (x86)\Eigenlabs\driver-1.0.4
and run :
dpinst.exe
ok cheers :