format install.roff.ms

Hi,
I can't format install.roff.ms for printing. Is there
something wrong with the file or am I making a mistake? Here is what I do:

alder% tbl -ms install.roff.ms > out

/usr/lib/tmac/tmac.s: line 840: no specification
tbl quits

Is there a postscript version of the same file? Printing *.ps documents works
fine.

Thanks!
Katarina

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Katarina Johnsson e-mail: kjohnsso@alder.pfc.forestry.ca
Advanced Forest Technology Lab phone: (604) 363-6017
Pacific Forestry Centre fax: (604) 363-0775
Forestry Canada
Victoria, BC