The plot thickens!

I tried uninstalling 2.1.5 and then installing from ejabberd-2.1.6-linux-x86-installer.bin.gz - I answered the questions and off it went.

This is the screen I got...

Setup is now ready to begin installing ejabberd on your computer.

Do you want to continue? [Y/n]: y

----------------------------------------------------------------------------
Please wait while Setup installs ejabberd on your computer.

Installing
0% ______________ 50% ______________ 100%
########################################
Error: Error running Post Install Script. <<<<<<<<< ---------------- EEK!
The installation may have not completed correctly
Press [Enter] to continue :
#

----------------------------------------------------------------------------
Setup has finished installing ejabberd on your computer.

So I looked in the log and here's the tail of it.

Executing final installation script
Error executing post installation script
/opt/ejabberd-2.1.6/bin/postinstall.sh
\child process exited abnormally
Creating Uninstaller
Creating uninstaller 25%
Creating uninstaller 50%
Creating uninstaller 75%
Creating uninstaller 100%
Installation completed
Log finished 04/04/2011 at 21:33:42

So, off I went and ran ejabberdctl live and this looks like the important piece of the error...

{error_logger,{{2011,4,4},{22,12,11}},"Protocol: ~p: register error: ~p~n",["inet_tcp",{{badmatch,{error,duplicate_name}}

And now I really AM lost! :D Where to from here folks!

Thanks Simon.