Scroll ball Backlighting issue

I have had my phone for close to a week now, and while I was making a phone call tonight I noticed that the backlight behind the end key, back key, scroll ball, BB Key and the send key was lit. No other lights were on. Is this normal? I tried an alt shift del to reboot the phone but the problem still exists. Any one else having this same issue?

Maybe so you can find the keys during a phonecall in the dark? or so you know you're still in a call if its set down w/ backlight off? Or a bug. lol. But mine is the same way

It is normal so you can use the important menu functions should you be in the dark.