No sorry needed, it's a learning experience of the goofy things that can=20 happen. On 11/10/13 12:51 PM, Larry Bradley wrote: > Solved it. There was a bad definition of TBLPTR in the definition file > for an 18F4620 for the Basic18 compiler I am using. > > I checked the assembly listing from the compiler, and sure enough, it > was only loading the low byte of TBLPTR. > > Sorry about that. --=20 http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .