Recently I realized that my '07 EB does not display the temperature on the 4-line message center. I don't think it ever has, and I didn't know it did until I saw a picture online of one displaying the temperature. That part of the screen is just blank, but that part lights up like it should when you do a system check. Is there just a hidden button I have to press, or is there some computer chip malfunction? If it matters, I have the optional AUX climate control.