Think I might have found the answer digging around the MikroE Forums. Possible is floating ADC pins. I have the pullups disconnected as per the manual. I am going to put them back on the ADC pins and see what happens.

DaveC3 -Thanks for the suggestion, but they have something like penDown already in the code and I have played with the value with no luck. Going to rest my eyes tonight and try again tomorrow.