That's a theme issue (with our "Greybird-lightdm" hack in precise). I can't test on quantal right now to check if it's been fixed.
** Package changed: lightdm-gtk-greeter (Ubuntu) => shimmer-themes (Ubuntu) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1050551 Title: [xubuntu] CapsLock warning on login screen is invisible (colorscheme issue) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/shimmer-themes/+bug/1050551/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs