Hello all, I was wondering if I could trouble any of you who have the Microchip C18 compiler installed to look for this file. For some reason it is missing from the installer, and it should go into the C:\MCC18\src\traditional\math\ directory. This directory contains a relocatable version of the AN617 math routines for the 18F, but seems to be missing this file. Regards, Bob -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist