Roland V Drums as MIDI controller not sending data
I am trying to use my Roland TD4X kit as a MIDI controller, for use with the EXS24 etc. but it doesn't seem to be sending any data.
I have a USB/MIDI cable with a USB port on one end and MIDI in and out ports on the other. I have connected the MIDI in port on the cable to the MIDI out port on the kit.
The cable does not require a driver.
I have read the manual for the kit and it does not have any help for me.
I have tested the cable in Audio MIDI Studio. When I press the Out button (down arrow) on what I'm assuming must be the cable, the green light lights up on the cable. However, I can not press the In button.
I have also read various forums and blog posts but no-one seems to have this exact problem.
Is this an issue with the cable? Or the kit? Or am I doing something wrong?
Any help is much appreciated.
Macbook Unibody 2009, Mac OS X (10.6.4)