check:
http://www.thinkwiki.org/wiki/How_to_enable_the_fingerprint_reader_with_ThinkFinger#Fix_for_the_fingerprint_reader_getting_too_hot
check:
http:// www.thinkwiki. org/wiki/ How_to_ enable_ the_fingerprint _reader_ with_ThinkFinge r#Fix_for_ the_fingerprint _reader_ getting_ too_hot