> See, I used 26 rather than 16. Yes. I wondered if you'd made a mistake or perhaps used a different (yet again) base. Started to work out what your base was and then decided that work really should be getting done :-) R --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .