I'm referring to it as a 'Task Bar' since it does not have a name on the smartphone features pages that shows the basic functions on the phone. I'm referencing the 4 options at the very bottom of the phone: Menu, Home, Back, & Search. The problem I'm having is that they rarely light up anymore. This is irritating because they are nearly invisible otherwise. They work. I can press one of the functions and it will open up the options but they don't light up. Any suggestions?