I'm sure you have to mute one of your volume controls in the windows volume control panel. I had the same problem. I'll have a look later unless someone can tell you first.
I just got my D-link USB radio today, and it works fine except that I got an echo when I listen the radio in Mediacar..everything that sings or spoken becomes an echo..... And it disaperes when I close Mediacar and just runs the D-link USB radio program.
Anyone who knows what it could be?
Hey guys, take a look at RoadRunner, its a clone of MediaCar only its being actively developed and in my opinion better. There are updates to it pretty much daily, it is downloadable from: