If you cannot install the Yamaha USB-MIDI driver on your computer (Windows), it is likely that the driver you downloaded is not compatible with your computer's operating system. First, determine whether your computer is running a 32-bit version or 64-bit version of the Windows operating syst...
98，Me版 http://www.yamaha.co.jp/download/usb_midi/files/um122me9.exe Mac版 http://www.yamaha.co.jp/download/usb_midi/files/um110mx.zip 到驱动之家看看吧，www.mydrivers.com