Settings unresponsive (Cinnamon)

[erw1]

I wanted to modify the screen saver parameters so I did 'Menu > Screen saver' and nothing happened. Then I did:

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$ echo $XDG_CURRENT_DESKTOP
X-Cinnamon
 $ sudo cinnamon-settings
[sudo] password for er:         
Traceback (most recent call last):
  File "/usr/share/cinnamon/cinnamon-settings/cinnamon-settings.py", line 607, in <module>
    window = MainWindow()
  File "/usr/share/cinnamon/cinnamon-settings/cinnamon-settings.py", line 243, in __init__
    for module in modules:
  File "/usr/share/cinnamon/cinnamon-settings/modules/cs_backgrounds.py", line 5, in <module>
    import imtools
  File "/usr/share/cinnamon/cinnamon-settings/bin/imtools.py", line 623, in <module>
    if Image.VERSION == '1.1.7':
AttributeError: module 'PIL.Image' has no attribute 'VERSION'

What is the nature of the problem, and what could be steps that I could take to resolve it?

[Cosmo.]

The nature of the problem can be described with one sentence: You corrupted your account by using sudo with a graphical command.

Follow my old advice to correct it: viewtopic.php?p=1430566#p1430566

BTW: Why did you not name the options, that you want to change?

[erw1]

Here's what i get:

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$ find /home/$SUDO_USER ! -user $SUDO_USER -exec chown $SUDO_USER:$SUDO_USER '{}' \;
find: ‘-exec’ is not the name of a known user

Why didn't I specify the option?

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 $ cinnamon-settings --help
Traceback (most recent call last):
  File "/usr/share/cinnamon/cinnamon-settings/cinnamon-settings.py", line 607, in <module>
    window = MainWindow()
  File "/usr/share/cinnamon/cinnamon-settings/cinnamon-settings.py", line 243, in __init__
    for module in modules:
  File "/usr/share/cinnamon/cinnamon-settings/modules/cs_backgrounds.py", line 5, in <module>
    import imtools
  File "/usr/share/cinnamon/cinnamon-settings/bin/imtools.py", line 623, in <module>
    if Image.VERSION == '1.1.7':
AttributeError: module 'PIL.Image' has no attribute 'VERSION'

[Cosmo.]

It seems, that you did not read my advice precisely, either the part about sudo -i or what I had underlined in the advice. Try it again.
Possibly there is more broken.