Hi Carl, thanks for the spiritual support :D Yes, I use it a lot, too, so it *is* absolutely annoying. It definitely has to do with some configuration setting, as my home desktop doesn't have that problem. But with KDE not having any manpages it's hard to even figure out what to look for. One difference is that the laptop uses two monitors. Maybe it's related to that? Just tried it with a new user, and there shading works, also with two monitors. But I sort of expected that. I had already tried comparing my laptop setup with the desktop one at home. Again, if you don't know what to look for... :-( Do you have something special in mind regarding display settings? I can't check other resolutions at the moment, as kwin will then resize and shuffle around all windows, which are a lot right now. Will have to wait a while.