[SOLVED] Sudo is...broken?...

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http://ubuntuforums.org – So, I just installed the 12.04 update. "Just" means today. I'm not sure if I'm late on that or what, but...anywhat, for awhile, Sudo worked fine, but, as of, as best as I can tell, two hours ago, every time I run into sudo, it throws these two error messages at me: sudo: unable to change to sudoers gid: Operation not permitted sudo: setresuid() [0, 0, 0] -> [115, -1, -1]: Operation not permitted So, this happens everywhere. If I do mkdir test then it works fine. But, sudo mkdir test just doesn't work. It doesn't matter if I'm in the directory or in a subdirectory of ~ or no (Hardware)