Line/Curve Tables - Slope distances required

I am trying to get the total lengths for a seamed liner by using 'Annotate/Line_Curve Table. I note from the 'Set Line Table Labels' that there is an option for slope distance, but when I run it the distances come out as Hz with random letters/symbols in a second column. Am I missing something somewhere, or will it just not show slope distance? Thanks
Sorry, this should be down in the Carlson software for Autocad section.
Sorry, this should be down in the Carlson software for Autocad section.