This has nothing to do with JDM but is due to yhe laptop design of using not 15V RS232 levels but often just 5Volt levels. Looks like blaiming the messenger and not the author of a message. Harry -----Oorspronkelijk bericht----- 1. Cheap hardware, few discrete components that have a better chance of working with a USB <-> serial adapter vs a JDM style programmer that most of the time does not work with laptop serial ports and USB<->Serial -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist