FunkyD Yeah ,i did double check the status of the box when I started getting crackles again. I was really sad to see it unchecked as things had been okay. I see your point on this but I'm not sure if most of the problem is with Cubase . As you say others make their hardware/ software combinations work with this daw. I think Cubase is at least one of the top 3 DAWs in use. Not tyring to say its all that important where the fault lies but I think N.I. could fix this easier than Steinberg. So far I've had major concerns with Maschine but N.I. has addressed each one and 1 year after buying I'm happy with it. I'm worried that in this case however,the relative small number of users experiencing crackles long term won't cause N.I. to make a fix soon.