A Louisiana man <A HREF="http://news.zdnet.com/2100-1009_22-5576846.html?tag=zdnn.alert">has pleaded guilty</A> to sending rigged emails that caused some computers to dial the 911 emergency services number, prosecutors said on Monday. David Jeansonne, 44, admitted to sending emails to about 20 subscribers of Microsoft's WebTV, a television Internet service since renamed MSN TV. An attachment to the email rewrote the user's access WebTV number to 911, so that the next time the service was used, calls to WebTV in Santa Clara were diverted.