> I suspect that Microchip didn't understand what you were > getting at (or didn't take the time to understand...) I hesitate to contact Microchip Support for that very reason The last time time I pointed out what eventually was discovered to be a real silicon fault, I was fobbed off for weeks with bland answers to irrelevant questions I didn't ask, with no attempt to actually replicate the fault scenario I described. The problem was with a dsPIC and yet the reply was "It works on the 24F I tried". Absolutely pointless It resulted in me sending a letter to the Support Training manager at corporate HQ It wasn't the first time they just didn't try and appear to be confined to some sort of inflexible checklist. You can tell - "Is the chip in the right way, what's Vdd, are you sure you've set such-and-such" etc. The impression I always get is that they are simply front-office seat-warmers I'm wondering whether these support people are any good at programming or really know the chips. More than once I've been instructed to do something which has already clearly been done in the snippets I send Joe --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .