Problem "A website is trying to start a remote connection"

I've just started to try distributed testing with NetworkSuite in TestComplete 9.0 and i've having problems even getting the remote desktop connection to work. This message is the closest i've come to a working connection so far. Does anyone know how to get around this? Currently this warning pops up and no matter if I click Connect or Cancel it just pops up again until the test times out. The machines i'm trying to connect to are machines I have no problem connecting with RDP manually and do not give this message.



Thanks,

Adam