ssh X tunnelling question

From: Brendan E. Conboy (conboy_at_raytheon.com)
Date: 04/28/03 

Date: Mon, 28 Apr 2003 10:06:07 -0400

    I have a firewall currently that has a built-in X gateway, my
coporate IT department has mandated I use a PIX firewall which does not
have X gateway support so I figured I'd go with ssh. I have one
application that I cannot get to work through an ssh X tunnel. It is
called STP (Software through pictures) and it is very old and there is
no support for it that I can find, but enough background here is the
error I get:

pascal:/home/waffle/conboy %/stp/local4.2d/binsun4/stp

StP: Parsing Specification File
X11 connection rejected because of wrong authentication.
XIO: fatal IO error 32 (Broken pipe) on X server "(null)"
      after 0 requests (0 known processed) with 0 events remaining.
      The connection was probably broken by a server shutdown or
KillClient.
pascal:/home/waffle/conboy %

    Any help would be appreciated.

    I do have X forwarding turned on (on both server and client) as an
xterm and other X apps come through fine. and ssh -V produces the
following output:

pascal:/home/waffle/conboy %ssh -V
OpenSSH_3.5p1, SSH protocols 1.5/2.0, OpenSSL 0x0090607f

    Thanks in advance.

/-----------------------------------------------------------------------\

| Brendan E Conboy Phone: (508)490-3958
|
| Sr. Software Engineer Fax: (508)490-3040
|
| Raytheon Systems Company Pager: (508)722-5943
|
| 1001 Boston Post Road
|
| Marlborough, MA 01752
|
| MS: 2-2-2854
|
| Email: conboy@raytheon.com
|
\-----------------------------------------------------------------------/