Sun Fortran 1.3 is broken and supposed to be fixed in 1.3.1. But I can't get 1.3.1 to write an unformatted file (segmentation violation). Has anybody else noticed this? Ralph Finch 916-445-0088 rfinch at water.ca.gov ...ucbvax!ucdavis!caldwr!rfinch Any opinions expressed are my own; they do not represent the DWR