New to PlayPerfect. I'm trying to set up the program to work with an Alto Sax. Have set record level, and set the pitch to A. I tried play the Untitled Score to see how PP worked. Not good. Erratic pointer movement. Moves without input and freezes at other times. Correct notes indicated as incorrect and bad notes ( I do play them) scored correct. Perhaps I have the incorrect idea how this program should work. Any suggestions?