I received K3/0 mini a few days ago from elecraft US. But I have a problem. I think VFO B knob is not working. (VFO_B is unlocked) I cannot change VFO B frequency and set menu entries using VFO B knob. I sent emails to k3support at elecraft.com but no reply. This is my first Elecraft. I'm not familiar with K3. Please help me. Hiroshi (Tokyo, Japan)