Hi

I converted mtz to xplor file and did the refinement . Also trying to use mtz file as it self, phenix
complaining about MDchecksum Rfree. 
I do have F, SIGF, I, IMEAN , Rfree-flags in the mtz file, converted to xplor format, phenix did not give me any
warning about MDchecksum,

Any suggestion
thanks
ram