Hi ErlendSB,
The toolbar container is a td target, you can find the style of it in "CuteSoft_Client\CuteEditor\Themes\Office2003\style.css"
#EditorID .CuteEditorToolBarContainer {padding:3px 2px 1px 3px;height:1px;overflow-y:visible;}
And you can change it directly. Please clean the browser cache after changes.
Regards,
Ken