It could be that you have chosen, at some point in time, to have an ever changing desktop background on the second monitor. The projector.
Of course, you will only see that when the projector is actually connected.
P
When i connect to a digital projector, it automatically changes the desktop background on my computer. It doesn't necessarily matter if I'm using a native background that came with my original computer or not. Sometimes it chooses a leaf photo, other times it finds a b&w picture....any ideas why? As soon as i disconnect, it goes back to the background that I have chosen to display.
OS 10.4.11.......PowerBook G4

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