New G3 just out of the box. Battery charged and card formatted - all seems to work EXCEPT for the Settings "cog-wheel" on screen lower left. Very occasionally it will work but you can touch the screen 20+ times and get no result. Anyone had similar problems; is a faulty screen a known issue? The swipe functions on the screen are not exactly inspiring either; sometimes requiring several swipes. Not too impressed as it's brand new. Any help appreciated!