DocEx problem: local or global?

[jwalker@crl.dec.com]

    From:  dmitchell@backus.trc.amoco.com (Donald H. Mitchell)
    Date: Fri, 15 Jun 90 13:47:00 CDT

    I get an error when I try to read "Table of Program Output Facilities Section"
    in the DocEx but customer support does not.  Can anyone else duplicate this
    error?  I've tried re-restoring the distribution files, but I still get the
    error.  I'm wondering whether my problem is local or global.

Yeah, blows out for me too.  First arg to ZEROP ... is not a
number.  I'm running 7.4.2 documentation.  Could be that
customer support is not.