External Display and the loss of wallpaper


macrumors 601
Original poster
Nov 9, 2003
Dress Rosa
When I'm at my desk I use an external display and desktop spanning. However, also benefiting from mobility I also take my PB out once in a while. I disconnect all cables then close my PB. However, when I come back I open my pb and hook everything up. When my external monitor "kicks" in, I's just the generic blue background. Everytime I have to open the system prefs and click on and off the "Change display every minute" setting to remind the computer of it's wallpaper. Any idears?
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