Hi,
Please try the following steps:
- Turn on the Roland unit
- Run Composer.
- In Composer, click on Setup -> MIDI Devices Configuration -> Config -> Initialize
This sequence forces Composer to look for all connected and open MIDI devices.
If the Roland unit still does not show up on the Device Configuration listing, please make sure that the actual Roland device driver - not just the generic Windows one - is installed. You may need to visit the Roland website and search for your unit to download the driver for it specifically.
Let us know how it goes!
Sherry