I'm new to WavePad, and just messing around with it initially, I can't seem to create a WAV file from CD playback on my computer. Nothing gets recorded. I have the Record Device and Playback Device set on SoundMAX Digital Audio, and the CD player selected under Record Device, but there seems to be no signal being recognized by WavePad when I play a CD with itunes or Windows Media Player. What am I doing wrong?