Thanks all for your replies. I've managed to resurrect a Win version of MPLAB with the CCS compiler=20 installed. The MPLAB-X approach is confusing and unconvincing to say the least. Matt --=20 http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .