war story: LCD display backlight problem

[D. Hugh Redelmeier]

My desktop display is a 30" Dell Ultrasharp 3007WFP.  Amazing that an 
eight year old monitor isn't superseded on my desktop (some newer 
monitors are better, but not enough to matter).

After the ice storm's power failures, a patch of the screen was darker 
than the rest.  Not enough to make that area hard to read, but 
distractingly different.  The patch was shaped as a horizontal bar that 
stretched roughly half way across the screen.  It was perhaps a sixth of 
the height of the screen.

I assume that this is one of the fluorescent backlights going.

I don't think backlights are replaceable.

Today I cranked the display brightness up all the way and left it for a 
while.

Now, several hours later, the dim patch has disappeared.  Even when I turn 
down the brightness.

I don't know if my fiddling with brightness fixed the problem.  But the 
problem was there for the better part of a week before I tried it.
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