SVN: Error message "Could not read chunk size: was closed by serv er"

I got this message when executing a "Revision Graph" and/or "Show Log"
options from Tortoise SVN (v 1.2.3 - Windows):
 
"REPORT of '/svn/repo2/!svn/bc/16047' : Could not read chunk size: was
closed by server. (http://arzilla)"
 
Any help on this topic will be greatly apprecitted.
 
Thanks in advance,
 
Kind regards.

****************************************************************************
This email may contain confidential material.
If you were not an intended recipient,
Please notify the sender and delete all copies.
We may monitor email to and from our network.
****************************************************************************
Received on Mon Nov 14 16:17:29 2005