SSH Disconnects during CVS Checkout

I'm trying to checkout a moderately sized project from a remote CVS
repository over SSH. I've done this several times before with various
machines, but now I'm having problems. I execute:

cvs checkout <project>

And the checkout begins, but after about 50 files or so, I get the
following error:

Disconnecting: Corrupted MAC on input.
cvs [checkout aborted]: end of file from server (consult above
messages if any)

Here are the system specs:

Client System
MacPRO OS X 10.4.10
2 x 3 GHz Quad-Core Intel Xeon Processors (64 bit)
OpenSSH_4.5p1, OpenSSL 0.9.7l 28 Sep 2006
Concurrent Versions System (CVS) 1.11.20 (client/server)
OpenSSL 0.9.7l 28 Sep 2006

Repository System
Red Hat Enterprise Linux AS release 3 (Taroon Update 6)
Unkown
OpenSSH_3.6.1p2, SSH protocols 1.5/2.0
Concurrent Versions System (CVS) 1.11.2 (client/server)
OpenSSL 0.9.7a Feb 19 2003

I've read several posts claiming incompatible openssh/ssl versions,
but I don't think that is the problem because I have the same openssh/
ssl version combinations on a different machine, and I have had no
trouble with that.

.

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