Can't Record In Dp 4.5, ES8 to DP4.5 no data Options

[LOSG]

I have a yamaha motif ES-8 connected to a G5 via mlan. All data connections seem fine. When I hit play for a song on the yamaha, and record on DP I get data in the DP Midi-monitor window but no data in the tracks window. I can also hear the music on my headphones from the yamaha . Nothing is being recorded to the hard drive. HELP !!!!!!!!!!!!