I'm getting the error message on a an iMac of "Could not load users and groups preference pane"
I was able to to use another profile to access the Users and Groups.. but when I added the new profile, I was unable to access it from there as well.
I tried the "Directory Utility" trick, but it looks like Directory Utility has changed. It no longer lists the accounts. Plus, there is no guest account enabled.
Any thoughts? TIA!!