Can't read cats file

In article <01HM733E74LUAR36JB@HCACAD.HOLYCROSS.EDU> you write:

I recently moved to a DEC alpha, and used the modified source code for
(64-bit int!) alphas form berkeley to make GRASS there.

I'm repeatedly having trouble with old data sets when I restore them from
tape. A typical message from r.cats, for example, is
WARNING: category support for [piraeus.dem] in mapset [nsmith] invalid
r.cats: piraeus.dem in nsmith - can't read category file

But if I go in with a text editor, the cats file looks perfectly good.
E.g., for the raster that produced the error message above, the cats
file is
# 8618 categories
Piraeus, digital elevation model

0.00 0.00 0.00 0.00
0:no data

Has anyone else seen this?

I don't know how much help this will be, but I'm running GRASS 4.1.3 on
a DEC Alpha 3000/300L running OSF/1 3.0 and have not had any problems with
grass rasters that were originally put together on SUNs. I compiled grass
using the source from moon.cecer.army.mil and the patches from Berkeley.

Bob