That is not a bad idea, but I think your monitor is adjusted poorly
if you can see the black boxes. I calibrated my monitor using Adobe
gamma and had to increase the brightness a LOT from that setting to
be able to see the black box around the moon (from about 30-35% max
brightness to over 50% max brightness). However, many people
probably have their monitors turned up much too bright, so I agree
that it makes sense not to introduce unintended artifacts, just in
case.

)
Hi John,
My monitor is a Philips LCD with a DVI connectioin, so I cannot
change the settings even if I would like to ...on my work, yes if I
turn down the brightness setting fromm 45% to 9% I do not see the
boxes anymore...
I have tried this Adobe stuff, that is nice if you are
professionally editing your pictures, but most people think it
makes your settings quite dull...
See, I have calibrated my monitor with the Philips software that
came with the monitor for maximum color depth and minimum noise (I
also use the VGA connection for another computer). Why would I have
to calibrate it again with Adobe? I think only the color
temperature settings would make a difference.
Anyhow, this starts to sound like whining, maybe I should not talk
about this early morning, rather late evening after a good glass of
wine....makes the whole picture so much clearer....
Cheers,
Steven