Hi. I'm experiencing the same problem. I'm using KB37 and GarageBand. Everything used to work just fine but now I can't get any signal from my guitar port. My midi keyboard is working though. Also tried reformatting my MacBook and re-installing Line 6 driver(ver 7.6.8) but no luck. I don't know if this is a software/driver or hardware issue(definitely hoping its not a hardware issue). Anyway, I'm following this thread if anyone is experiencing the same problem and if anyone resolves this. Cheers.
