Someone see if they can duplicate this: Open the Applications folder: Command+J : Check 'This Window Only' Background Color, click on the color rectangle and then change the background color using the Magnifying glass color picker. OK the new color and then close the Applications window and reopen. The color change? Now close and reopen again. Back to the color you chose? Half the time it changes the other half it stays the same Did this about 10 times on 10.4.5 Intel with the same outcome every time.