hi, correct, MyDMX 2.0 box will not work on MyDMX 3.0 software. /
Here is the latest MyDMX 2.1 software for windows: https://www.dropbox.com/s/lxi7...46t/mydmx21.exe?dl=0
It will still need a firmware update so be sure to open Hardware manager from "C:\MyDMX2.1\HardwareManager" and then let it upgrade the firmware and all should be good.