Fluorescent tube under screen. How on earth do you switch this on?

I may be going mad, but there is a fluorescent light between the bottom of the screen and top of the keyboard on my iMac book Pro. I've seen this on in the Apple stores and know it glows, so why can't I find how to switch this on???

iMac Book Pro Mac OS X (10.4.8)

emac

Posted on Feb 22, 2007 4:06 AM

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Fluorescent tube under screen. How on earth do you switch this on?

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