user interface a graphic display will call a gaphy.pl plot program. This program was written for the windows 2003 server and plot the hash marks on the bottom of the page if any of the variables ploted are interpolated. If two the the variable are real and one is interperated then the hash marks will show do check the table output to determine which variable is interpolated. On verga running under windows 2008 the hash mark to not work. The is probably due to a perl scrip interpolation of the perl graphic program