Problem can you help

[jnoble06 at comcast.net]

I am new to this vnc thing trying to get it to work for me. 

What I am tryuing to do is  setup my computer lab so I can take control of all the pc's and show the student 

what we will be doing by lettingthem watch their screen why I show them. 



Problem 

One connect and works fine   when 2nd conects it drop the first one? 



Any tip to resolve this 



Thanks in advance