Rybka -- Free version always plays the same opening?

I downloaded the free version of Rybka with Arena.  I notice when I play white as e4, Rybka always plays Nc6 as black.  Question, is there a way to make Rybka play different openings in random?

hmm, perhaps it is possible to load another opening book.  I think I saw references to books on their site.  Another question about rybka/arena - Is it possible to play moves for both sides with rybka analysing, as I can do in chessbase light with fritz 6 as a 'kibitzer', or in chessmaster simply by showing the lines that chessmaster is thinking about.

To vary the openings, download, and load the Arena main book or create and load an opening book of your own.  There are also probably Rybka specific books available on the web.  In the book tab on the main Arena window you can set priorities for different moves or add lines to the book.

To analyze the current position, just click on Position and then Analyze Now!

Thanks Rigamagician!

You're welcome.