Mike,

The missing colons were a typo. Thank you. I added them, but still have the same issue.

Dave,

The motor is a small piezo driven motor that will eventually move through some gearing, but very slowly. On the order of 2 RPM. I am simulating the motor position potentiometer by moving an external pot by hand. I will increase the wait periods between motor movements and let you know the results.

Thanks for the help.
Paul