Good picture but impossible on-screen controls.

Good picture, but the on-screen controls are absolutely inscrutable. I called Lenovo and they could not even send me any instructions specific to this model. I was astounded. I found out how to adjust the brightness but no combination of keys would help me keep it at the reduced brightness. If I could have been sent instructions on how to do it, I wouldn't have minded so much but not only did it take me ages to get to speak to someone, he sent me instructions for just about every model except mine.

Verified purchase: Yes | Condition: New