Volume cuts when inserts active

I have windows 8, and cubase 5. I have installed my Fast Track audio interface, and get a sound when I put it through cubase. But I want to put effects on the track in the inserts panel. But if the inserts are active, I dont hear anything through the track, but if the inserts are on bypass, I do. This is really weird as I cannot record like this. I am trying to use LeCab 2 as a cab.

How can I get the sound to play in realtime?

Thanks,
Josh

Turn Off Direct Monitoring.