Hey great program Frodo!

I don't really know if this is a bug or not. I'm trying to use my radio extreme with frodoplayer by connecting the radio extreme to my audigy2 nx's line in. I set Frodoplayer to control the volume of the line in, but it does not change the volume. It will however mute the sound. I then used just the radiator program(also set to control line in) and it worked fine. I also tried the radio extreme with my desktop also using frodoplayer and it worked seamlessly. I've went through just about every setting in frodoplayer, windows, and radiator but nothing works. Any suggestions?