CComponents: fix screen rests

Frame of painted box was incomplete removed, eg hint box see also:
http://www.dbox2world.net/board293-cst-coolstream/board314-cst-coolstream-development/12230-r%C3%BCckst%C3%A4nde-auf-bildschirm-bei-apollo/
Merge remote-tracking branch 'cool-next-cc/next-cc'