I do not know why, but even when the skin of the editor is not assined and when i do use it as default the web page get dameged and all my asp.net menu controls opens. when i do EnableEmbeddedSkins="false" every thing goes normal but in this way there is no skin for the editor. the project is huge and we are using telerik in most part of it. the dll ver. is 2009.3.1314.35
