I see everything goes to the right way with this issue VWR-3401. Thanks.

Best Regards,
shaq

my settings, and i also see the stripes in the sky when the bar is at "high"

I have two Nvidia 7900GT 256mb cards in SLi.

Client-> Debug Settings -> WLSkyDetail -> value = 274 or greater up to 409 (410+ crashes!)

value of 273 is the highest "bad" value, all values below seem to be a non-random issue of whether the banding happens or not

values 274 or greater - all good
All ODD values from 203 to 273 result in sky banding.
All EVEN values from 204 - 272 are good..

then it gets worse when you go lower:
from 165 to 201, every THIRD value is good, all others are bad
from 140 to 160 every FOURTH value is good
from 120 to 135 every FIFTH value is good

lower is even screwier:
114, 108, 98, 88, 81, 70, 66, 60, 48 are all good, all others bad

36 is the minimum value for the black banding; 273 is the maximum...
i also noticed 61 and below results in a star pattern in the top center of the sky.
all values 26 and below generate larger star or ray patterns, and blockier color gradiation, but no black banding.

0 crashes the client, as does 410 and higher, and results in being reset to 286 on restart
it's interesting to note that water reflects the banding properly (hehe)