I had this issue, but also noticed a few other bugs (like doubled up Printer icons, old icons that shouldn't be there any more, missing icons and some settings failing such as the screen settings) - I fixed it simply through an apt-get install ubuntu-desktop (although I imagine just doing the system settings app would probably have worked too.)
I strongly suspect it's a side effect of going from 14.04 to 14.10 as the distribution upgrade app broke near the end on all machines I did the upgrade on and the process had to be manually fixed on all machines I did such an upgrade on (that taught me a lesson!) Did you guys also have a similar almost-a-show-stopper distribution upgrade bug, by any chance? (SO sorry I'm sparse on details - if it becomes relevant I can do some research and backtrack and locate the bug .) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1384981 Title: system-settings transparent To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+bug/1384981/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
