MOC volume control issue

First of all, sorry for my english.

I have problem with making MOCp to work with ALSA. It plays ok, i can hear sound but theres no way i can change the volume. I tried to change something in config, but when i put line "AlsaDevice = hw:0" mocp says "No valid sound driver", when alsadevice is "default" changing valuses of AlsaMixer wont help too. It works when i leave it default. I also tried to create .asoundrc and according to that put this in line AlsaDevice, but still same problem. I have no idea how to make it work, it is very good on my laptop but on by box it nightmare. Help me please