germain: >but releasing it to high >state ( what means 12V in this case ) would probably not. doh. of course it wont. my apologies. could use could use a series diode to fix it of course, but then the circuit complexity is creeping up again without offering any advantages over what you already had. regards, Simon -- http://www.piclist.com#nomail Going offline? Don't AutoReply us! email listserv@mitvma.mit.edu with SET PICList DIGEST in the body