thanks Ioan I've try this too but problem continues I put : span=1,1,0,ccs,hdb3,crc4 span=2,2,0,ccs,hdb3,crc4 span=1,1,0,ccs,hdb3,crc4 span=2,0,0,ccs,hdb3,crc4 span=1,0,0,ccs,hdb3,crc4 span=2,0,0,ccs,hdb3,crc4 In all this configurations the problem is the same I'm desperate