no sound from headphone cubase 6 mr 1.7

I tried to record vocals through input 1 and 2 from my MR815X. I can see input and channel signal. But no volume in headphones! I I have headphones volume on. And i can hear all the other music through my headphones. I have tried both recording direct monitoring and low latency 64 ms. But inputs volume from mic i dead. I tried 3 different microphones. Same problem. Maybe this is hardware post but i did not have this problem with cubase 5 and MR editor 1.6. Anyone else?