Hi, I have yamaha psr i425 and windows 7 OS 64bit on my dell laptop. When I'm trying to install 'USB-MIDI Driver for Windows7 from yamaha website and as per guidelines in the manual, I get Error 25001 which says - no device is connected. connect a device and try again. Even when the cable is connected, the laptop doesnt recognise the usb cable itself. I've tried uninstalling/updating driver in device manager, booting the laptop with the cable on and all such options but in vain.
Pls guide on this. thanks.