Problem with launching Neverwinter Nights

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Whenever I try to launch Neverwinter Nights I get the following error message

bash: ./nwn: /bin/sh: bad interpreter: Permission denied
This happens also when i try to launch it with sudo.

ANy help would be greatly appreciated.

[A-star]

I have found an answer here:
http://www.ubuntuforums.org/showthread.php?t=27138&highlight=bad+interpreter