Hello troffers! It seems that the man page for the contributed mom macro package (groff_mom(7)) shows an incorrect path to the examples; see supplied patch.
--- groff-1.21/contrib/mom/groff_mom.man 2010-12-31 08:33:09.000000000 +0100 +++ groff-1.21/contrib/mom/groff_mom.man.fixed 2011-01-22 13:48:59.000000000 +0100 @@ -81,7 +81,7 @@ \[en] entry point to the HTML documentation . .TP -.B @EXAMPLEDIR@/*.mom +.B @EXAMPLEDIR@/mom/* \[en] example files using mom . . Best regards Ralph