For some unknown reason, the background color on my SP1 Start Scree ( Metro screen ) whatever the hell they call it with all the tiles ... has turned to an ugly yellow / orange color. I don't know what I did to cause it. I've gone to the desktop and poked around in Display and Personalize and haven't located a background color for the screen. Desktop background ... no problem ... I have it set to Black. How can I change the background color of that screen?