Hi, Having made sure to set the I/O pins of a 12F683 to=20 the digital configuration; I then proceeded to wrestle with strange=20 yet reproducible I/O problems for a few hours. I glanced at the data sheet and suddenly noticed the term 'comparator'=20 seeming to glow on the page. Crap... forgot one. I am now curious as to why the PICs analog capable pins generally power up= =20 configured in the analog function. Any ideas? Jamie --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .