Does anyone know if Mchip have updated their serial driver for CDC under USB for VISTA, I must admit I can't find it on the site. Robin Abbott Forest Electronics - Home of WIZ-C ANSI C Compiler for PIC's with RAD Front end robin.abbott@fored.co.uk www.fored.co.uk -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist