Funcube Dongle Pro+ with GQRX

[ik8ozv]

Please anybody can help me to get it working under GQRX?
When i try to select the I/O Device, i can see two devices, one named
FUNCube Dongle V2.0 and another one named FUNCube Dongle V2.0 Stereo Analogico.
the first one has as Device string FCD=0
while the second one has as Device default_input=True,default_output=False,device_id=0,driver=audio,soapy=0.
If i select the first one the program closes down while if i choose the second one i get the audio distorted and mixed with the background noise. It is not clear.
Please any help?
Thanks
Enzo