I have the pro 24 and have tried it with both ableton(free with saffire) and garageband

I have a macbook 2.2ghz dual core with 4gb RAM.

On both ableton and Gband there is a big latency issue when playing out to the monitors. I can play the DAW output through the headphones and it works perfectly, but copying the same mix but setting it to output through the monitors, a very notable latency

This is both when I am playing a live instrument and also listening to what has already been recorded.

Any ideas?