I just used the student version of the Microchip C30 C compiler for the first time. It compiles the program OK, but there is a warning message issued: "The MPLAB C30 license has expired. pic30-coff-cc1.exe: warning: Options have been disabled due to expired license" Is this normal? Does the student version always give that warning? Or is something else going on? Before installing the student version, I had installed the regular C30 compiler to try it out for 60 days (before the student version became available), but thought that installing the student version would supersede that one. I know that the student version does not do the optimizing that the commercial version does, but it doesn't seem like they should issue such a warning. John -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist