I'm currently using Windows XP SP2 and recently discovered a display problem.

It appears that any relatively dark portions of the screen, such as the blue
bar at the top of windows and such, will cause darker shades to go across the
entire screen as well.  I can still see what is underneath these shaded bars,
as it were, but the fact that it darkens the things that it covers is rather
annoying.  I would like to make it so that these darker portions of the
screen will not cause these shaded bars to appear.

This developed yesterday after a couple of programs were installed by my
family members (Warcraft III, iTunes and iPod software).  I do not know how
this came about and have yet to find a way to fix it.

Any suggestions?