Hi Damian, with groff from git and
tbl bug.txt | eqn | troff -mm -Tps | grops >bug.ps I don't see the labels beyond the margin (like in your file), they are exactly aligned. Could you please send the command with which you generate bug.ps? --Carsten PS: Nethertheless there is a bug in -mm which can be seen with input like <some text> .DS 1 1 <more text> .DE