kJams

I have a Logitech usb mic and it shows up in the os, it even detects my voice via the level indicator. When I load the app it also adds the mic level under the volume level in the upper right but I can not hear my voice. When I go into the preferences I do not see the mic listed I simply see ...

I hope I am not missing something here. I downloaded and setup the trial version to test out the product and have 2, I hope, not very dumb questions.
I downloaded a couple midi kar files and when they play it seems that words that come up on the screen seem to switch to the next verse at the last ...