GTK looks ugly after upgrade of OS

Hi,

I upgraded os from Suse9.1 to 9.2.
To get my wxpython app to run I had to install
the FC2 version of wxPython.

The only problem I have is that my app looks extremly
ugly now. All widget seem to have grey as default colour,

For example the editablelistbox is all grey. The Treectrl
have grey background except the Item Text which has white background.

Any ideas what it could be?

/T