Hi Ralph

The other pins are tied to either GND, or 5V as per the circuit drawing that comes with the LCD. The LCD pdf can be downloaded here:
http://www.lcd-module.de/eng/pdf/doma/dog-me.pdf

I am using 5V, SPI interface, as every other pin on the PIC will be used (eventaully). At the moment, the extra PIC pins are not connected.

Best regards
Richard