Version: (using KDE 4.0.2) Installed from: Ubuntu Packages A similar issue has been solved AFAIK with KDE 4.0.2: if you try to close a maximized window the desktop toolbox in the right upper corner is opened. This bug appears again with a twin view setting. If you do not move the mouse perfectly on the left screen to the corner, but you go to the right screen than the toolbox is opened again.
I can confirm similar behavior. I just upgraded my distrib to latest kubuntu 8.04 / KDE 4.0.3. A big progress with focus management, but there is still minor issue with palette: I have 2 desktops horizontally (that is first is left of the second). Therefore I have two palettes (one in the center of screen, and one in the right corner). When I move mouse to right screen and then activate palette from left screen (which is located in center) (Or just close window which is maximized on this screen, but the key is that focus came from different Xinerama screen) the latter palette stays maximized when I move mouse to left screen. That is, mouse just crosses palette while moving from one desktop to another. Also, it seems that this behavior is triggered: when I move mouse over palette next time, it minimizes, and so on.
SVN commit 809497 by chani: opening the desktop toolbox on hover was never going to work perfectly, and would be a bit of a problem for touchscreens (they make the mouse jump instead of moving smoothly) - so it no longer happens. the toolbox just lights up on hover now, and opens on click. it still closes on the hover leave event, though. this makes the code a lot less hackish and should produce the least frustrating behaviour possible. it's also a bit more like the panel cashew behaviour. BUG:159520 M +2 -1 containment.cpp M +61 -40 desktoptoolbox.cpp M +6 -1 desktoptoolbox_p.h WebSVN link: http://websvn.kde.org/?view=rev&revision=809497