[xwiki-users] Problem with search textfield

Hello, I've installed a wiki farm and observed a minor problem: in the main wiki, when I click in the standard search textfield, the text ("search...") vanishes. In my virtual wikis it doesn't. This is the tag (absolutely identical): <input class="globalsearchinput withTip" id="headerglobalsearchinput" name="text" value="search..." size="15" type="text"> The text field from the panel is working fine (everywhere). Best wishes Werner