trying "sudo apt-get install nxagent" package libxcompshad3 not installed failed to install/upgrade: trying to overwrite /usr/lib/libXcompshad.so.3 , which is also in package libxcompshad 0:3.2.0-1hardy1

Was being installed as a dependency of nxagent, but failed.

rmallins@rmallins-desktop:/etc/nxserver$ lsb_release -rd
Description: Ubuntu 9.10
Release: 9.10
rmallins@rmallins-desktop:/etc/nxserver$

rmallins@rmallins-desktop:/etc/nxserver$ apt-cache policy libxcompshad3
libxcompshad3:
  Installed: (none)
  Candidate: 3.3.0-3-0ubuntu1
  Version table:
     3.3.0-3-0ubuntu1 0
        500 http://gb.archive.ubuntu.com karmic/universe Packages
     3.3.0-3-0ubuntu1~karmic1 0
        500 http://ppa.launchpad.net karmic/main Packages
rmallins@rmallins-desktop:/etc/nxserver$

full attempted install:

rmallins@rmallins-desktop:/etc/nxserver$ sudo apt-get install nxagent
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following packages were automatically installed and are no longer required:
  nvidia-kernel-common libxcompshad
Use 'apt-get autoremove' to remove them.
The following extra packages will be installed:
  libxcompshad3
The following NEW packages will be installed
  libxcompshad3
The following packages will be upgraded:
  nxagent
1 upgraded, 1 newly installed, 0 to remove and 5 not upgraded.
Need to get 2,126kB of archives.
After this operation, 340kB of additional disk space will be used.
Do you want to continue [Y/n]? y
Get: 1 http://gb.archive.ubuntu.com karmic/universe libxcompshad3 3.3.0-3-0ubuntu1 [25.4kB]
Get: 2 http://ppa.launchpad.net karmic/main nxagent 1:3.3.0-6-0ubuntu3~karmic1 [2,100kB]
Fetched 2,126kB in 2s (986kB/s)
Selecting previously deselected package libxcompshad3.
(Reading database ... 284527 files and directories currently installed.)
Unpacking libxcompshad3 (from .../libxcompshad3_3.3.0-3-0ubuntu1_amd64.deb) ...
dpkg: error processing /var/cache/apt/archives/libxcompshad3_3.3.0-3-0ubuntu1_amd64.deb (--unpack):
 trying to overwrite '/usr/lib/libXcompshad.so.3', which is also in package libxcompshad 0:3.2.0-1hardy1
Preparing to replace nxagent 3.2.0-1hardy1 (using .../nxagent_1%3a3.3.0-6-0ubuntu3~karmic1_amd64.deb) ...
Unpacking replacement nxagent ...
Processing triggers for man-db ...
Errors were encountered while processing:
 /var/cache/apt/archives/libxcompshad3_3.3.0-3-0ubuntu1_amd64.deb
E: Sub-process /usr/bin/dpkg returned an error code (1)
rmallins@rmallins-desktop:/etc/nxserver$

ProblemType: Package
AptOrdering:
 libxcompshad3: Install
 nxagent: Install
 libxcompshad3: Configure
 nxagent: Configure
Architecture: amd64
Date: Tue Nov 10 22:18:22 2009
DistroRelease: Ubuntu 9.10
ErrorMessage: trying to overwrite '/usr/lib/libXcompshad.so.3', which is also in package libxcompshad 0:3.2.0-1hardy1
Package: libxcompshad3 (not installed)
ProcVersionSignature: Ubuntu 2.6.31-14.48-generic
SourcePackage: nxcompshad
Title: package libxcompshad3 (not installed) failed to install/upgrade: trying to overwrite '/usr/lib/libXcompshad.so.3', which is also in package libxcompshad 0:3.2.0-1hardy1
Uname: Linux 2.6.31-14-generic x86_64