The bottom right corner of 700m's pic (the thin part) is what mine looks like across the bottom evenly. It was about an inch high, but has faded to almost nothing over the last few months.
And I never notice it unless I make the screen go all black. Don't even notice it in dark movies unless the screen fades completely black.
And turning down the brightness in BIOS just 2 notches makes it go away, but then it makes dark screens in CounterStrike difficult to see with the HDR in the 7800GTX.
In the end, I'm happy with my WXGA+. Not a single dead pixel either. =)