Like Confused suggested load a fresh configuration. Or if that doesn't help load another firmware in order to reset it.
Devialet Expert 200 (FW 7.1.3) / Magnepan 1.7i / Rel T5 / Foobar (WASAPI event 24bit) / AIR 3.0.1 public beta (best Air 3.x.x SQ by far)