On Beyond 2000, the talking map that knows exactly where you are. Take a left. Do it now. It's called the backseat driver. The speed limit here is 45 miles per hour. Ah, shut up. Plus, a disease that affects 200 million people. Between 40 and 50 percent of these boys may have the parasite in their blood system. The solution? A flower. Could it also lead to a cure for AIDS? And high tech hits the high seas. Hey, someone talk to you while you're riding away. Beyond 2000, Tuesday on 7.