All pop-up windows are full screen.

[Donn]

> So I went back to the "Configure Window Behaviour" options (right click on
> a title bar) and deleted any application settings, and still everything
> pops up maximized.
Right, I dug around. My per app settings are in
/home/donn/.kde/share/config/kwinrulesrc
Perhaps you will find entries for programmes that you don't want it to be 
remembering stuff about -- delete those.

Also check it out (and the other kwin*) files.

Still hacking around.

/d