Reply to Serato Live

So I've tried recording a mix via the Serato Live within the software, but the sound is distorted or too low, I've even gone through all the song choices and set the levels. Any advice? I'm still in the process of setting up my studio which will give me much more options to record properly but for now and in the meantime I'd like to just record a decent recording on my Macbook Pro in Scratch Live. I thought you could record your mixes directly within the software, maybe a setting I don't know about? Help?