Help! I have Excel 2010 and recently any time I opened any excel sheet, my ribbon and all toolbars are missing. The only thing at the top is the formula bar. My Ctrl F1 key does not work to unhide the ribbon. I do not appear to be in full screen mode as pressing the esc button does nothing. I do not have a ribbon display option button at the top right of my screen. The only buttons I have at the top right is minimize, restore down, and x. I've tried everything I can think of. Anyone have any ideas?