[ic] why does convert-date cause 500 error? (Foundation demo)

[Glenn McCalley]

Finally isolated it!  It's "convert-date"!!
In the admin UI, -any- page that contains the "convert-date" tag produces a
"500 Internal Server Error".  Every time.  Remove that tag and that tag
only, and the page displays fine (well, no data where the date should be,
but it displays).

Anyone know what could cause this or had this before (I don't see it in the
list archives) or am I launching into the convert-date routine next?  All
comments appreciated.

Glenn.

IC 4.8.2 / Foundation demo.
Perl 5.6.1
FreeBSD 4.0