Cannot access shared files after installing NG 14

After installing NG14 my laptop computer, which is connected on my home network, can not access shared files from my desk top Dell 530.  The Dell is running XP Pro Service pack 3 and the Toshiba laptop is running Vista Home Premium 64 bit.  It was working fine before the install. 

 

Any help will be appreciated.

 

<<Edit: Subject edited to reflect the issue>>

Message Edited by JerryM on 09-17-2009 09:35 AM