I believe that if you select the compress option when you exit v.digit the "dead lines" are removed from the dig_att file when v.clean is run. James A. Farley Technical Director, CAST/NCRI-SW 12 Ozark Hall, Univ. of Arkansas jim at moray.uark.edu Fayetteville, AR 72701 Voice: (501) 575-6159 FAX : (501) 575-3846