Slight Delay On Headphones [Solved]

Hi again guys, I'm back with a different problem this time!
To solve my previous problem I upgraded to Cross DJ, and it's awesome. No doubt about that!
My problem is that there's a slight delay in my headphones - just enough to be noticeable and annoying.
I'm using a laptop with in-built soundcard, and an external soundcard which is runnig the headphones. I'm using Asio4all to get the sound coming out of both soundcards.
Could this be something to do with latency? I've heard that mentioned before, but I don't quite understand it.
I hope that someone can help as it's confusing my finely-tuned ears!

To solve my previous problem I upgraded to Cross DJ, and it's awesome. No doubt about that!
My problem is that there's a slight delay in my headphones - just enough to be noticeable and annoying.
I'm using a laptop with in-built soundcard, and an external soundcard which is runnig the headphones. I'm using Asio4all to get the sound coming out of both soundcards.
Could this be something to do with latency? I've heard that mentioned before, but I don't quite understand it.
I hope that someone can help as it's confusing my finely-tuned ears!
