Hi James.
We are experiencing the same issue in our application.
Into the error.log file exists these lines:
[Thu Sep 17 10:52:53 2009] [error] [client 172.29.13.196] (70014)End of file found: proxy: error reading status line from remote server exiwai14.baires.techint.net, referer: http://ebd.exiros.techint.net/ebd/gi/shell.jsp?jsxapppath=/ebd/gi/JSXAPPS/MAIN
[Thu Sep 17 10:52:53 2009]...
