I copy/pasted your line into my compiler (CCS 3.249) and "it works on my machine". So I vote for maybe one of those symbols being defined already. Or the CCS versions 4. + which have significant changes. Also, a "divide and conquer" debug can be applied to the line, but I suspect you know all that. Also suspect you've solved it by now. Barry -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist