I have the same problem, I updated the system and all the add-ons model packs, FXjunkie, Power/pack, it's all gone, and it's not responding when teathered to the computer - like when I tweak the setting's . yet if I move the knobs on the unit, it shows-up on the computer. I wish I had never updated the hardware. like when I load Gilmourish tone, I get a error because the Tube-Driver is gone, and it's prompting me to choose a different stomp. I don't like this. I paid for all those add-ons and now they are gone, I have been using this thing for years, it's not like I don't know what im doing.