are you running the server program on the pc your connection too?
Next set the no-ip to forward as host to your public ip.
what errors do you get?
if you log in to msn might be able to help a bit more.
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what result do you get
here
dont post your ip though (but you know that)
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have you opened tcp and udp port 5900?
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have you tried your external ip not the no ip one?