in vista Go to control panel, ease of access center, then set up high contrast, go to choose a high contrast color scheme, choose high contrast, go to advanced... , then change all the menu bars to different shades of gray. apply that and close all the windows. Now when ever you press ALT+ left SHIFT+ PRINT SCREEN it will change text on you screen to grayscale. pictures and some banners will still be in color but for the most part everything else will be grayscale