How do I prevent KDE from messing up my Qt dialog button order?

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http://askubuntu.com – I use mostly GTK+ applications (eg. Geeqie, Audacious, etc.) on Lubuntu. However, I decided to give KDE 4 a try by installing kubuntu-desktop and then removing the apps I didn't want. Big mistake. Now, even when I'm running LXDE with the Qt applications running QGtkStyle, apps like K3b use Windows/KDE button order in dialog boxes rather than the GNOME/OSX-style button order used by standard GTK+ dialogs. How do I force Qt applications back into using the GNOME-style button order for dialog boxes? (Ideally, in a manner strong enough that it'll stay in effect even if I log into KDE, since 90% (HowTos)