write failed File too large files > 2G

Hi,

I'm trying to rsync between two systems running HP/UX and am
consistently getting this on the client with files greater than 2G
client # rsync --delete -Papv server::ignite/ /backup
receiving file list ...
7319 files to consider
recovery/archives/t34a/2004-05-26,13:58
write failed on "/backup/recovery/archives/t34a/2004-05-26,13:58":
File too large
rsync error: error in file IO (code 11) at
.../rsync-2.6.2/receiver.c(227)
rsync: connection unexpectedly closed (219836 bytes read so far)
rsync error: error in rsync protocol data stream (code 12) at
.../rsync-2.6.2/io.c(342)

and this in the syslog on the server
Jun 30 14:17:17 server rsyncd[6091]: rsync: writefd_unbuffered failed
to write 4096 bytes: phase "unknown": Broken pipe
Jun 30 14:17:17 server rsyncd[6091]: rsync error: error in rsync
protocol data stream (code 12) at ../rsync-2.5.6/io.c(515)

The server is HP/UX 11i 64bit, the client HP/UX 11i 32bit and both are
running
server # rsync --version
rsync version 2.5.6 protocol version 26
Copyright (C) 1996-2002 by Andrew Tridgell and others
<http://rsync.samba.org/>
Capabilities: 64-bit files, socketpairs, hard links, symlinks,
batchfiles,
no IPv6, 32-bit system inums, 64-bit internal inums

I'm sure it's not the filesystem (or rcp) that's at fault since I can
rcp the file over and continue. rsync has been built with the
large-files option as well. A good google of the error messages only
seems to find others with the same problem.

Any help would be appreciated.

Cheers,
Peter