Getting an odd problem using the C18 library... I include usart.h and=20 use OpenUSART( ... , ... ) but get an error telling me I'm calling a=20 function with no prototype. I know it's finding the header file, as=20 without it I get errors that all the constants are undefined. Also=20 tried explicitly adding the header path, but same issue. Oddly, I can include the xlcd.h and use the routines in there with no=20 problem. Anyone know why this is happening? --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .