On Mar 1, 2010, at 8:02 AM, Jason Hsu wrote: > How can comment lines be misinterpreted by a compiler? Comment lines > are SUPPOSED to be ignored by the compiler. What went wrong here? You used the "//" form of comments, which are terminated by an end-of- line, with an editor that showed/treated a bare CR as end-of-line, and a compiler that didn't. I blame the editor. EOL these days is either CRLF (windows, netascii) or just LF (unix.) CR has never been an end-of-line except when received from a keyboard. BillW -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist