Hi,
I really like the NBS tool, but I had a question about design matrices.  I have two groups (24 and 26 per group).  I set up this design as a text file with two columns as per the example in the help and loaded the design matrix.  However, I get the error message:

Stop: Design Matrix not found or inconsistent

I'm really not sure what I could be doing wrong because I had gotten this to work in the past.  My design matrix is attached.

Thanks,
Matt