Bobby,
#1. Make sure that the MIDI Out from the controller goes to the MIDI IN of the MIDI Interface.
#2. Make sure the MIDI Out from the Interface goes to the MIDI In of the JV1010.
(Some interfaces, like the M-Audio Uno seem to be reversed, so if after making sure that everything I tell you that follows is correct, and it still doesn't work, switch the cables)
#3 Open Real Band
#4. Go the MIDI Driver icon on the Menu bar and open it. You'll see your MIDI interface, probably along with a few other things in the Input, and Output sides.
#5. Select your MIDI inteface on both sides, so that only the interface is highlighted.
#6. Press Move Selected Devices To Top
#7. Check and make sure that the Re-Route MIDI Playback to default DXi/VSTi Synth is NOT checked. Latency should auto adjust. Close the MIDI Driver setup Window.
#8. Click on the Preferences Button on the Menu. Select the 6-MIDI tab.
#9. Click on the MIDI Thru button. Check to make sure Enable Thru is checked, Track Specific is checked.
#10. From the Options Menu, select Show Piano, if you don't already have it showing.
#11. Play something on the controller. The Piano bar should show you the notes you are playing.
At this point, if you do not see the notes playing, switch the cables on the interface.
#12. When you see the notes on the keyboard, you should hear the JV1010 playing.
#13. If you do not hear the JV1010 playing, create a new song, with no data, click on Track 1.
#14. Right click in the Track Configure area, and make sure the Port is set to your midi interface, that the Channel is set to 1, and that the Track Type is MIDI.

If that doesn't help you, I'm not sure what else is going on.

If you can't get it to work, tell me exactly what type of Interface, and what shows up in the MIDI Device Driver dialog window.

Gary

I'm blessed watching God do what He does best. I've had a few rough years, and I'm still not back to where I want to be, but I'm on the way and things are looking far better now than what they were!