I'we tried one.. the driver installation was kinda tricky... i couldnt have any other USB devices connected when I connected the USB GPS.. the mouse would act all funny
anyway... the one I got.. was faulty.. so I never got to actually test the reciever part

)
USB GPS worked for me

im just waiting for new one from GPS WAREHOUSE in Great Britain ... it cost'd me 89£ (with Reciver and Route 66 Europe Map)
Gpsw.co.uk
Regards
Richard
NORWAY