I have an NX5R in my rack, as well. I've been using soft synths for so long now I may have this wrong, so bear with me. There was an NX5R ins file at one time. I would not even begin to try to remember where. The workaround for your problem is to download both the NS5R and the Yamaha XG ins files. The NX is basically an NS with an XG daughterboard in it. In order to access the daughterboard sounds you have to set the NX in XG mode. When you are using the NX part of the module, you can assign that track to the NS ins. If I remember correctly, you can only use the module in one mode at a time, either NS or XG. While using the Yamaha XG daughterboard for a track, set that track to read the XG ins. I will look thru my older computers and see if I can find the original NX ins. If I can locate it I will post here and try to get it to you.