I just got a new MBP (core2 duo - love it) from Apple. Tried to use it to telnet to a cisco router. Here's what consistently happened:
newmbp$ telnet 10.235.42.12
Trying 10.235.42.12...
Connected to gobble.dee.gook.example.org.
Escape character is '^]'.
And there it would hang. When...