Hello all I observed, that the TasksCode-Panel inserts css style definitions to the html-code. Unfortunately this css defines a .box class style. It seems, that this .box class definition affects display of several objects, e.g. the general Comment Box or the box created by the code-macro (when using XWiki 2.0 Syntax). (the code-macro in 2.0 Syntax actually refers to class="box code", but none of the css defines a box.code-class, so obviously the .box class is used). Regards Bernhard Kaempf PS: As a ugly quick fix I hacked the TasksCode Skin (by altering the name of .box class) PPS2: XWikiUserSheet is not displayed under Syntax2.0