Invalid diff stream

I get the following error when I try to commit a large photoshop file
after deleting a layer:

-----------------------------------------------------------------------------------
svn commit "Pos App & Acc.psd" -m "Removed layer"
Sending Pos App & Acc.psd
Transmitting file data .svn: Commit failed (details follow):
svn: Invalid diff stream: [tgt] insn 4927 starts beyond the target view
position
-----------------------------------------------------------------------------------

The client is 1.2.3 on windows and the server 1.2.0, apache 2.0.54, on
windows.

Any ideas what the problem might be? What other information might be
useful?

Thanks in advance,
Clint

-- 
Clint Chapman
Luminos Industries Ltd.
Phone: 613-225-7661
www.luminosindustries.com

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