I'm obviously missing something here. I am trying to use ports RA0 through RA5 as digital I/O lines instead of analog input lines. RA0 - RA3 work fine. I would like to use RA4 and RA5 for digital output only, but I can't seem to get them to work. Can anyone give me a hint as to why RA4 and RA5 might be 'special' in some way? The problem with RA4 may be related to my use of the internal counter/interrupt. What about RA5? Thanks. Jim jdolson@iserv.net