Thread:Extension talk:Vector/My left menu won't collapse/reply

I have the same. It just won't collapse. Its not the browser, since the collapse of the SideBar here works. Any requirements on the links on the SideBar page? I just have a bunch of ....LocalSettings.php :
 * title
 * Pagename1|alias1
 * Pagename2|alias2
 * Pagename3|alias3
 * Pagename4|alias4
 * title2
 * Category:name1|alias5
 * Category:name2|alias6

require_once( "$IP/extensions/Vector/Vector.php" );

$wgDefaultUserOptions['useeditwarning'] = true;

$wgVectorFeatures['editwarning']['global'] = true;

$wgVectorFeatures['editwarning']['user'] = true;

$wgVectorUseSimpleSearch = true;

$wgVectorFeatures['collapsiblenav']['global'] = true;

$wgVectorFeatures['collapsiblenav']['user'] = false;

MediaWiki 	1.17.0 PHP 	5.3.8 (apache2handler) MySQL 	5.0.91-community Installed extensions Special pages ChangeAuthor (Version 1.1) EditUser (Version 1.6.1) Password Reset (Version 1.7) User Merge and Delete (Version 1.6.1) Cite DynamicPageList (Version 1.8.9) MobileDetect (Version 1.0b) ParserFunctions (Version 1.4.0) RegexFunctions (Version 1.4.1) Author Protect (Version 1.2) ConfirmEdit FCKeditor Lockdown Vector (Version 0.3.0)