This is a duplicate of http://bugs.kde.org/120455 which was fixed in umbrello version 1.5.2.
Hope this helps, Oliver M. Kellogg -- Umbrello UML Modeller http://uml.sourceforge.net bugs: http://bugs.kde.org mailto:[EMAIL PROTECTED] -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]