Windows XP monitor colour management tab under Display

[K.I.L.E.R]

I'm not sure if it's just me, but I think the colours on my monitor look better after installing my monitor drivers which have also installed a colour profile.

Is it just me? I always thought that tab was useless.
What does it do?

 

[Guden Oden]

Damned if I know... I never noticed any difference at all actually.