RCA OPAL M4002 MP3 Player Problem

Question

I have a M4002 OPAL MP3 Player that I have only recently purchased. The problem that I am having is that the MP# player does not show up on my computer. I have tried to use Yahoo Music and synchronizing using Windows media player, but they both tell me that there is no device. I have gone through the device manager and tried to update the drives as well as reinstall the driver. The device manager says that the device is working properly, but I still cannot load/unload music onto the player at all.