[QUOTE=Darrel Taylor;80423]OzGrant,
See this thread about how to fix the configs ...
http://www.picbasic.co.uk/forum/show...=6775#post6775

Attached .txt document is a list of the _CONFIG settings for the 18F4550 from its corresponding P18F4550.INC file in MPLAB folder. It is always a good idea to have this list handy when setting up code for a new program.