[Keyser Soze]

I know how you can fix the MSIE problem of not displaying the shouts:
Simply open the Style Manager in your AdminCP, click on "edit templates" and revert all templates belonging to the MGC Chatbox.
It seems like the uninstall routine of the MGC Chatbox does not work as expected and is incomplete. It doesn't remove all old templates if you click on "uninstall".

But I found another more serious bug. If you enable the "ban" command in the latest version and enter the command "/ban show", the only thing you can see in the popup is a mysql error message:

Invalid SQL:

SELECT username,userid,usergroupid,displaygroupid
FROM user
WHERE mgc_cb_evo_banned='1'
ORDER BY username ASC;

MySQL-Fehler : Unknown column 'mgc_cb_evo_banned' in 'where clause'
Fehler-Nr. : 1054

Why does the plugin expect a column called "mgc_cb_evo_banned" in the user-table if it didn't create it in installation process? So it seems that not only the uninstallation routine is buggy but also the installation.