Trouble changing cinnamon themes

[Rolling Thunder]

ok....so im having trouble changing the my themes in mint 14 cinnamon.....i can get to the cinnamon settings-->Themes window....but i cant just click or double click and change the theme...i can go to "Other settings" and change the cursor and the window theme....but it wont allow me to modify the underlying theme of the os for some reason....i can even change the login appearance....i need some help....

[Rolling Thunder]

so im guessing no one has any idea about wat is going on with my computer?

[zerozero]

please share the output of

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inxi -SGx