Colour scheme problem!!!

My pc has had a bit of a beny (not this one) Its decided to set my windows colour scheme to black, all black, the desktop pic, dialogue boxes, text, the lot! I cant read a thing, and so i cant navigate to the themes and appearance bit to set it back to default! Ive tried i promise! Ive also tried in safe mode, but the scheme is still aplied.

Can anyone give me any ideas of how to restart with the basic appearance?

Its running xp sp2. Any help is much appreciated!

Cheers.

 

No worries, sorted it! Thanks all.