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I have installed skype on my fresh squeeze 64bit system. It works fine except for the fact that the gtk theme isn't really working and the result is quite ugly:

enter image description here

How can I fix this?

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up vote 3 down vote accepted

Skype is a proprietary 32-bit application, and cannot use 64-bit Gtk+ theme engines.

Try installing ia32-libs-gtk, which provides several engines. If that doesn't work, you'll have to change themes so that you are using an engine which is available in 32-bit.

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Yes I have ia32-libs-gtk installed as I thought it would make gtk available to 32bit applications, but skype doesn't seem to care – Matteo Riva Mar 20 '12 at 8:57
It is available, otherwise Skype wouldn't run at all. Your problem is the unavailability of your configured theme engine, thus Skype is falling back to Raleigh. – ephemient Mar 20 '12 at 14:21

use export GTK2_RC_FILES="/etc/gtk-2.0/gtkrc:$HOME/.gtkrc-2.0"

You can put this in your ~/.bashrc so it is always available.

Also, try this: run qtconfig and choose GTK+ as the theme for qt applications.

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Tried both, no success. – Matteo Riva Mar 20 '12 at 8:56

ephemient's idea is intriguing. Try installing other GTK engines and switching to them to see whether Skype is able to use the new ones without falling back to Raleigh. I know it sounds nightmarish, but you can also run Skype under strace and see what files it fails to open (if any). Also, what engine are you using? Gnome/GTK 2 or 3?

As another data point, I'm running it under Ubuntu 11.10 64-bit with Unity and Radiosity and it picks up the engine correctly.

A final note: I would comment on epemient's answer, but I suffer from low karma here. :-(

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