Hi Everyone, I am new to this forum. I have just installed the Mobo video player Pro on my new Onda Vi40, but after installing, I got on the desktop a three-button control, which is the Wi-fi, auto-rotate and contrast button, not sure how it gets there. However, when I tried to go to the Setting -> Display, it keeps telling me 'The Setting has stopped working' and I have to select 'OK' to get out. Being annoyed, I went out to the desktop and removed the three-button control, hoping to get back the Display on my Setting panel. However, after I removed it, I found I have no way to get it back! I still can't get to the Setting -> Display page, the error remains. And now, the tablet does not know how to hibernate. Can someone tell me how to get it back?? If I need to re-install, can someone tell me what steps I should do???? Many thanks!