I noticed last night in my dark bedroom that my bottom four function keys are still slightly lit even though the screen is totally off. You can't see the illumination in normal room light or daylight but at night they are defiantly glowing and if you look from the screen to under the function keys you can see spots of light from all four LEDs. No I don't remember if my handset #1 did this or not or if this is common but I'm thinking not because although dim these lights are still using power and draining the battery somewhat. So what I'm asking is is this normal and has anyone else noticed this issue? Do I need to get it swapped out AGAIN?