I traced the problem down to the NVIDIA driver. Sorry for the alert, but I was really annoyed.
-- A lot of programs can't be started https://bugs.launchpad.net/bugs/115877 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs