Tools malfunctioning in Photoshop. Purchased brand new this weekend, only used it for a few hours. Colour is stuck entirely in K (CM and Y are not options, neither is changing to RGB), eye dropper will not select samples, brushes, eraser, burn, dodge, hand and other tools are entirely non responsive. I can select areas and toggle between tools, but that is almost it. When I move a layer aside, there is a copy of my background with a light red filter over top that won't go away. Getting no error message or other help. Very disappointed and frustrated. I'd CS6 back or I'd like my money back. I need this program and can't afford this kind of delay. Hoping it's fixable.