[Mediawiki-l] Selected German as Language but tolltips and Links still English

[Simon Wagner]

Hello,
i have installed a mediawiki 1.4.7 on my server. Everything is OK so far it
is running, but when i looked closely at the navigation-links i noticed
something was wrong:
I had selected German as Language but the tooltips of the Links where still
in English, although the caption was in German (e.g. "Spenden" linking to
"support us" with the Tooltip "Support this Site")
So I looked for this array in DefaultSettings.php

$wgNavigationLinks = array (
    array( 'text'=>'mainpage', 'href'=>'mainpage' ),
    array( 'text'=>'portal', 'href'=>'portal-url' ),
    array( 'text'=>'currentevents', 'href'=>'currentevents-url' ),
    array( 'text'=>'mylink', 'href'=>'mylink-url' ),
    array( 'text'=>'help', 'href'=>'helppage' ),
    array( 'text'=>'sitesupport', 'href'=>'sitesupport-url' )
 );

After this I searched in LanguageDe.php for sitesupport-url. If I would 
change this entry, thought, this would change the link.
I didn't found sitesupport-url, so I added it:
'sitesupport'=>'Spenden',
But this didn't change anything... ( I have set Firfox's cache to 0KB, so i 
must have seen it)

Now, also changing
'mainpage'=>'Hauptseite'
to
'mainpage'=>'Hauptseite TEST'
didn't change anything.
Seems MediaWiki doesn't care about what is standing in LanguageDe.php...

After this, I tried to change the tooltips. Again the same, I searched for 
tooltip-sitesupport in LanguageDe.php.
This time I was surprised: It was standing there already:
'tooltip-sitesupport' => 'Unterstützen Sie {{SITENAME}}',
So the tooltip should be in German *confused*

Now, I don't know how to solve the problem.

Did anyone of you have the same problem?
Why does MediaWiki ignore my changes in LanguageDe.php?
How can I make it following my changes?

Thanks in advance
S.W.