Thin white line

I was going to post this in a related thread, but that one has been hijacked by an argument about language, so...
I've had my new MacBook Pro for two weeks and the display is a bit grainy and has a slight backlight leak in the bottom left-hand corner but both of these were OK.
Now, suddenly, it's developed a thin white line at the top of the screen, at the same position as the edge of the top menu bar, almost like the edge of the menu bar has "burned in" to the screen - you see it very clearly when you start up or shut down the machine and the screen has a completely blank grey or blue background.
My questions are:
- Is anybody else seeing this?
- I think I'm "just" over two weeks since getting this machine, so should I try for a replacment or should I just submit it for repair. Apart from a squeaky spacebar key, all is working fine, so I don't know which is the greater gamble.
Any comments would be appreciate, thanks.
MBP C2D 15" 2.33Ghz 3GB RAM 200GB HD Matte   Mac OS X (10.4.8)  

Mine had the same problem - a thin white line after some use. I returned it as soon as I discovered.
It was also grainy, the was no white in the screen, bright sand would be more appropriate
None    

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