Shade-C Terrain versus dynamical lights

Hello,
I am trying to use the Shade-C terrain shader together with dynamical lights. In standard mode, the terrain doesnt even react to dynamical lights (but to sunlight), everything else works fine. If i disable the "DOSUN" parameter, every part of the terrain thats just a bit in the range of the dynamic light gets completely black.
What am I doing wrong?

Sorry, I forgot to post the pictures. Here you go:

i'd suggest you wait on the new shadeC, i cant give a time as to its arrival, few weeks/months maybe? but i dont think it'd make sense for you to go through this much work now, only to change it then ? so move on to something else and come back to the terrain if you can