Midisport Or Oms Problems? Options

[louise g]

Here's the problem:

I have a Midiman Midisport 1x1 connected to a G3, and when I play notes nothing seems to be registering on its 'Out'. When I play my controller (Ensoniq VFX), the "In" lights up to say it's receiving, but nothing is getting out and down the cable to my sound module (Roland JV-880).

I've checked all leads etc, and the problem has to be in the interface or the OMS set-up.

I haven't had the interface for very long, and I had it working a couple of times, but all of a sudden it's clammed up - does anyone know what this could be? all advice received very gratefully - I'm very new to all this stuff, and have come to the end of my know-how!