No channels found

    Hi. I have Dreambox 600PVR-S orginal firmware, everything used to working perfect until a day ago, i had every channel that i wanted on my DM600.
    But then it just went black, and ive got no service on every channel and a message 'Tuning Failed' i reflashed the box. setup my right satellite 0,9 / 0,8 Thor, single LNB. And i do a auto transponder search,


    with :


    SNR : 90%
    AGC : 91%
    BER : 0%
    And ive got lock and sync CHECKED .
    Then it search through 80 transponders with no channel found? I have search many times, but still no channels.


    this is from telnet message :


    "XPO FE Int 00000008
    DMX :CRC problem
    packetloss :-(..".
    Nonstop.


    I have tried another LnB but got the same message. My other box works perfect with this setup.. Please help, what is the problem?
    Sorry for my english!