Comment 2 for bug 597987

I've got similar issues with GIMP after recent system updates and it seems that some other applications are affected in the same way too. For instance In Appearance > Background (on GNOME 2.30) I can't see correctly all the preview icons of backgrounds any more. What I see instead it's shown on attached screenshot (I've got about 20 wallpapers saved so the whole white area should be filled out with previews like it used to be).
All the resources are still available - I can change background by clicking within the white area. But even when I press the mouse button down no preview for the particular background shows up. I just see which one I've picked when it appears on my desktop. Similarly in GIMP: I still have all my brushes, gradients, palettes and other resources (including custom ones) available but no preview icons for them at all, just empty little squares. I don't appear to have an option to attach more than one file so will post GIMP-related screengrab in next post.

Just a little info about my system:

1. Ubuntu 10.04 (amd64) with recent updates (including lucid proposed and a few ppa repositories)
2. kernel 2.6.34 compiled manually (a long time before the issues occurred)
3. GNOME 2.30
4. GTK+ 2.20.1-0ubuntu2 (lucid proposed) along with these engines (I think it may be relevant):
    gtk2-engines-pixbuf 2.20.1-0ubuntu2
    gtk2-engines-murrine 0.90.3+git20100624~ppa1 (can't remember from what ppa repo)
    gtk2-engines-aurora 1.5.1-1 (as above)
    gtk2-engines-equinox 1.2-0 (as above)
5. GIMP 2.7.1+, compiled manually from git, along with babl and gegl - none in default (system) directories (not that I think GIMP 'is guilty' here at all)
6. X-related packages (including x-org-server, xserver-xorg-video-ati, libdrm) recently updated from the ~xorg-edgers ppa repository