Problem with Arduino Mega 2560 and CTE 70 shield

Hi Everyone,
Just received my CTE70 shield and display, and I'm having a problem with the example code -- the CTE700_800x480 sketch.

The CTE_LCD functions are working and displaying properly.

However, the UTFT (myGLCD) functions in the demo degrade with random pixels be drawn, added, etc.

Any ideas?

Thanks,
Harold