Midi Keyboard problem

Guys

I have been using my edirol PCR-M50 keyboard but recenty i have found some of the keys no longer send midi data, aaarrgghhhh      well anyway i have another keyboard which i can use which has a built in synthesizer. i am connecting this to the computer using midi to usb leads. The computer picks up the new device and i can assume it has installed a generic usb device driver. when i attempt to set up the keyboard to send midi to cubase i cant seem to get it to work.  I am adding a device from the device manager and setting it up as a general midi device. i have set the output to usb device. I am finding it hard to explain myself which doesnt help but has anyone got any or know any instructions to set up a keyboard in cubase using midi to usb leads

thanks in advance guys   

Guys please disregard the post. i am being silly. my old keyboard is usb to usb and my new one im using midi in and out leads to usb. it appears i was connecting the usb leads wrong haha     who would have though midi in does not got in midi in tut tut