Windows Vista - http://www.vistaarticles.com
Other Computers use Old Name to Access the Computer
http://www.vistaarticles.com/articles/260/1/Other-Computers-use-Old-Name-to-Access-the-Computer
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Published on 12/10/2006
 
After you use Windows Vista to change the name of a computer, other computers can continue to access the computer by using the previous name of the computer.

Other Computers use Old Name to Access the Computer
This issue is resolved after a short time when the old name is marked as a tombstone object.