Hey guys, My Ultrex is about 4 years old. Got it right after they came out. Haven't had a lick of trouble out of this thing and I've used it and abused it. Recently the pedal started locking up - Had to wait for it to unlock before I could move it. Took it in and had the mother board replaced in the foot pedal. It was fine for 1 trip then started locking up again and is now losing spot lock too. Anyone else had this happen? Thanks