It is broken. Rob (keyclone) has never responded to anyone on this issue (not that I know of). This is about the 4th or 5th post on this subject. I've emailed and PM'd him. Nothing.

Lalt and rctrl are always sent regardless of what you want to be sent.

This is why I am now using Innerspace:Repeater from lavishsoft.com - not as easy to setup - but there is realtime help via their IRC.