I recently purchased the Tone Generator software after good experiences with the demo version. First use after purchase went well. The next day I tried to use the software, and no sound played back. I went ahead and went to Add/Remove programs (windows) and ran a re-install of the software. No luck here either. The player shows that there is a tone being generated after I select the play button, but no sound is audible (I have double checked the volume bar within the software, I have double checked my device settings/audo output settings). Ever have this happen before?