Hello all, I want to use some hash who have a hash key. But, i don't understand the hash key behaviour : >> a={} => {} >> a[{1,2}]='ok' => "ok" >> a[{1,2}] => nil >> a.keys => [{1=>2}] >> a.keys[0] == {1,2} => true >> a.keys[0].eql?({1,2}) => false >> a[a.keys[0]] => "ok" So, why i can't access to the hash with a hash key ??? -- Traz