I know that my problem can't be sharing files--- 400 should be enough, and I never have problems when I limit to my shared folder and only have 25 or 30. So I don't understand why all of a sudden I am getting this requery bermuda-triangle situation. . . the last time LW functioned properly for me ( a few hours ago-- it has been doing this new thing nonstop since) it was doing strange things like moving very slowly and randomly missing pieces of the display. I'd have to constantly move on my trackpad to show progress. otherwise, the screen would pretend-freeze. (look like frozen, but move when I moved.) I've seen a bunch of complaints about the requeries, but no explanations that would fit what I am experiencing, and what I suspect is what the others are describing. Does anyone have any new ideas or things to try?