Cannot connect to testnet

[jon_smark]

I'm having trouble connecting to testnet.  I've opened up TCP port 18333 and started bitcoind with the following command:

Code:

bitcoind -testnet -debug -printtoconsole

This is the error I get:

Code:

connect() failed after select(): Connection refused
IRC connect failed
IRC waiting 71 seconds to reconnect

Note that connecting to the main network works fine.
Any ideas?

Thanks in advance - Jon.