Hi John > I need to reset all data EEPROM to 0x00 when programming the 16F877 using > the ICD. > Apparantly ticking the box: > Program Option > Erase All Before Program > is supposed to ensure this. Have you tried to include a DE directive in your code to initialize the EEPROM memory ??? Fabio Pereira -- http://www.piclist.com#nomail Going offline? Don't AutoReply us! email listserv@mitvma.mit.edu with SET PICList DIGEST in the body