Okay, so at the moment you're running CCcam I assume? This means you should have one file called CCcam.cfg. When you open that on your PC, the line should start with either C = or N =. If it's C you may have problems because MgCam is generally to run the N lines. If it's an N click on the link in my sig to setup Open ATV and go to the section for Softcams which should tell you what you need to do.