Ethernet+ telnet Problems

Hi Guys,

A just got a Ethernet Shield for Xmas and I am trying to get it up and running and having some problems.

When I run the ChatServer example I can telnet in and I get a blank cmd screen but when I press any key I get kicked out of the telnet then I cant get telneted back in all I get is Connecting to IP Could not open connection to the host, on port 23:Connect failed

I have tried changing the port and I can get in once then I have to change the port again.

Anyone got any ideas?