I have an interesting small mystery. I have my desktop background set to rotate through a folder of photos that I have published on our family calendar. I also have my Mac set up with multiple desktops, with each desktop devoted to a certain class of task (mail, RSS reader, accounting tools, Windows, etc.)
Under this arrangement, MacOS throws up a different desktop photo on each desktop, rotating them according to schedule (though often not performing the rotation until that desktop is selected as live, which is a tiny bit less than deluxe, but not the issue here). I have noticed that some desktop photos are more equal than others. For instance, check out this movie of me scrolling through three desktops <http://macsrwe.com/misc/static-desktop.mov>. You will notice that for most desktops, the photo and desktop contents scroll together like a static image. But for one desktop (the one with the large donkey head), the photo's position stays fixed on the screen while the desktop contents, menu bar, and neighbor desktop windows scroll across it. I figured there was something special about that one — like perhaps it was a PNG while all the rest were JPGs. But nope, they're all JPGs. And know their specs are identical as to size and resolution, because they were all created to identical specs for the calendar print process. Then I thought, maybe something is special about that desktop. I dragged the Desktop & Screen Saver control panel through all the desktops. All were set to Fill Screen. The only difference was that some were not set to change the photo every hour, but the desktops set identically to the donkey one weren't acting like the donkey one (plus I took the opportunity to fix the setting so they all rotated). I'd love to know why this is happening, and if it can be made to occur on purpose. Does anybody know what causes this behavior? -- Macs R We -- Personal Macintosh Service and Support in the Wickenburg and far Northwest Valley Areas. http://macsrwe.com
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