Im confused on the license process. I recently sold a S2 MK3 that was bundled with Traktor Pro 3 I believe. Im trying transfer the hardware SN over to new buyer so he can get Traktor pro as well. Do I then lose access to my install of Traktor pro in wehich i now have Pro 4? I also at same time bought a used S3 however the serial number is registered already and I cant contact originasl owner as was bought on line from a shop that doesnt have that info. The S3 shoud of also been bundled with saoftware. Support has been not answering my questions and suggesting I have to buy a crossgrade or upgrade license or something. I have two tickets open. ONe for the S2mk3 transfer and one for my new S3. I submitted proof of purchase as well as pictures of unit for them on Monday. No answer back to that ticket. Can anyone help?