If you are having the transparent issue I suspect you are using an old version of Sb. Download SbV3-P2 from the sticky.
I have noticed a task-bar issue with Sb and RR. Set your task-bat to auto-hide and it should fix that.
I know nothing about minimizing. In a properly configured CarPC you should never have to minimize your front-end. If you do have to minimize to configure something, you may have to un-minimize Sb to get it to work again. Not surprized.