I can't get four icons to stay put. Whenever I boot up, the same four desktop icons have moved. They move to the same place, and those places are off gird. The effect of their moving is also to move another icon or two off the grid. I therefore have to re-arrange the desktop every time I boot up. I've tried aligning to grid, and then unchecking the selection, as suggested. However, it does not work.
Has anyone got another idea. It's very annoying.