added bzero() of outbuf[] in configure() for instruments with no sound output. somehow garbage in the buffers was getting sent(?) to the output with a Snow Leopard compile.  BGG 12.27.2009
added bzero() of outbuf[] in configure() for instruments with no sound output.
somehow garbage in the buffers was getting sent(?) to the output with a
Snow Leopard compile.  BGG 12.27.2009

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