does anyone have any idea why this is happening? I can't see my screen when the light won't light. Is there somewhere that I need to send my TREO to have it repaired or is this a part I can get and fix myself? This was a gift, I have no insurance or warranty. PS. It is not the contrast and brightness, it is the entire lighted background and this is the 3rd time it has happened and I am on day 3 of no light. thank you for your help!!