Annoying keyTips

I use Alt+Tab very often for switching to other programs and when I switch back to the Studio, the keyTips are still ON (highlighted letters like File, Home, Review, Advanced etc. When I begin to type, different tabs of the ribbon begin to switch instead of typing in the editor window,  and unintended functions are executed sometimes!!! It is VERY ANNOYING!!! I need to switch off the keyTips so that they are displayed ONLY when I am holding the Alt key!