sound seems to be ok, but my guitar tuner and the tuner on my training program seem to disagree on what pitch notes are, dont know what to blame that on,
dont know about usb i tried to put a usb drive in there and it didnt have the drivers for it.
its probably got an aftermarket display adapter or whatever in it, that needs different drivers.
think ill just fork out and buy a decent secondhandy.
thanks for all your help.