Hello, help needed please. I'm running El Capitan 10.11.6 on an early 2011 Macbook Pro. Rocksmith was running fine until today when an update installed and now I can't play any paid for DLC or CDLC songs. I've tried to follow the instructions and it didn't work. I downloaded the Rocksmith Tools Lancher, unistalled reinstalled both Rocksmith and the launcher, still not working. Starting to loose patience, don't understand what the Tools Launcher is for TBH... I'm not a techy, I just want to play some songs!