Nokia

Ok, so I finally received my Nokia 6170 today... But, there's a problem. On the main screen - the inner display, there is a blueish/gray line that runs horizontally between the antenna and battery life indicators. It is right above where it says Cingular. Now, it doesn't stay there all the time... For instance, when I select an option that places a word on that line, it disappears until the end of the word and then appears again to the end of the screen. Or, if I bring up the IMEI number, it disappears completely... Once out of those options though, it reappears for the length of the screen. Is it supposed to be there? Can you shut it off? Do I need to return the phone? Any suggestions or ideas would be greatly appreciated. Thank...
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