[Foundation-l] Edition toolbar missing

[fdo]

Hi
I have installed mediawiki version 1.4.9 successfully in a linux server.
 MediaWiki <http://wikipedia.sf.net/> (*http://wikipedia.sf.net/*): 1.4.9 
PHP <http://www.php.net/> (*http://www.php.net/*): 4.2.2 (apache2filter) 
MySQL <http://www.mysql.com/> (*http://www.mysql.com/*): 4.0.17-standard All 
works fine but EDITION toolbar, it is not displayed
I have enabled in preferences "show edition toolbar" 
I have enable JavaScript in FireFox and Explorer

And at the end no one can see edition toolbar.

Later I made a new clean installation of mw1.4.6+enotifwiki3.11 and the 
problem is the same, all works fine but edition toolbar is not shown.

Any idea?