Dear Daniel.
First of all, it is easier to help you if you attach the python script you use for the calculations that you already got working. Makes it easier for us to understand what you are doing...
Secondly, while waiting for the script, I have a few thoughts on your project:
- Try using the Custom Passivator (Builder->Coordinate Tools"). I think the "4 (SP3)" hybridization for passivating the carbon structure may be useful.
- Do you do spin polarized calculations to the FM and AFM band structures? (I guess NM means non-magnetic, i.e. no spin polarization). Do you initialize the AFM calculation correctly using the InitialState script block?