Was experiencing the same issue, however, instead of removing the entire file (seems a bit blunt to just remove the entire file) I just opened the backgrounds.xml and removed all entries with the <wallpaper deleted="true"> value. I think the problem is that Wallpaper Tray just read this file without checking the above parameter, so it tries to load all the deleted pictures.
I have found another related bug while fighting this one btw: It doesn't understand strings with "non-english" signs in them. I have folders with the danish letters "æ", "ø" and "å" in them, and it just completely ignores these letters meaning it won't display pictures in these folders either. The xml-file includes the ascii code for the sign, but Wallpaper Tray can't translate them and therefore, it can't locate the pics! -- wallpaper-tray always displays pictures from /usr/share/backgrounds https://bugs.launchpad.net/bugs/355081 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