fwd moves help

[Shamash]

hi everyone... (before... sorry for my english :S) im making mi own char with kfm and i want when i press fwd_z my char do another move... but always do the same punch!! why is that?? the rare thing is if i change the button like "fwd_x, fwd_y, fwd_z" dont chance the animation... but if i use the kicks a,b,c then works     any help please??