Please follow steps:
1. open file "\CuteSoft_Client\CuteEditor\Themes\Office2007\style.css"
2. search the following line:
#EditorID .CuteEditorToolBarContainer {padding:3px 2px 3px 3px;height:1px;overflow-y:visible;}
Change it to:
#EditorID .CuteEditorToolBarContainer {width:400px;padding:3px 2px 3px 3px;height:1px;overflow-y:visible;}
3. Test it again.
Thank you for asking