Well. I found a clue. I just browsed the Wildbush theme directory and noticed that some *inactive* .xpm files were only totally transparent pictures. So, I did copy the relative *pressed* xpm pictures over the correspondent *inactive* pictures, when missing, e.g. cp close-pressed.xpm close-inactive.xpm or cp hide-pressed.xpm hide-inactive.xpm and so on. Then I reset the win decoration to wildbush and the bug was gone. Before that I managed to see xsession log or xorg log, but didn't see any clue. Hope that helps. Regards.
-- Xfce Crashes When Choosing Theme "Wildbush" https://bugs.launchpad.net/bugs/573516 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs