Thread:Project:Support desk/line break in front of nowiki

MediaWiki: 1.14.0; PHP: 5.2.8(apache2handler); MySQL: 5.1.30-community

Always when a page is saved or the review-button is pressed, there appears a new line break in front of each. This destroys the formatting of the whole page after a few times of editing. Is this a common Problem? I tested it on Windows XP-pro with IE6 and Firefox 3.6. The strange thing is that wie have a second MediaWiki with almost the same configuration on an another Server where the problem does not appear. Does anyone know a solution?