Comment 12 for bug 694592

I solved this in my KUbuntu 10.10 amd64 after update to KDE 4.6.0. as follows

First I installed oxygen-gtk from Maik Schäfer's ppa: https://launchpad.net/~msb/+archive/ppa , so

sudo apt-add-reposytory ppa:msb/ppa && sudo apt-get update && sudo apt-get install oxygen-gtk

Then in kde systemsettings in GTK+ Style I selected Oxygen-gtk

Then I deleted my ~/.gtkrc-2.0

after I copy my ~/.gtkrc-2.0-kde4 in the same location but renaming it as .gtkrc-2.0

finally y copy both files .gtkrc-2.0-kde and .gtkrc from my home directory to /root/

After rebooting X all looks ok.

HTH