Ok... i had this problem since day one. post number 20 in this thread...
http://www.oesf.org/forums/index.php?showtopic=8541

is my problem in a nutshell. so far, i have noticed this problem in all roms (cacko, pdaxii3, r198 and angstrom) i tried. i already tried messing with lcd phase settings to no avail. the problem is quite severe on dark colors and on higer backlight settings. i found little info about this problem, so quite frankly, i don't know what to do. does anyone have any experience with this problem?