FireVoxel Build 135B is released.

Real Valued volumes (such as PET and parametric maps):  fixed defect when after the cropping such volumes where transformed into the Integer Volume class.

Dialog  Registration 3D\4D:

Further simplified and compacted by conveniently grouping the translation fields in the AutoFocus panel.

PET-to-MR registration:  Achieved a very good registration result on the difficult case "MG".  Problem was that PET image was rotated by 12 degrees with the respect to MR just in one axis Z.
Default registration parameters were "widened" to accommodate such enormous displacements. Also switch default registration measure from MI (mutual info) to URAL (gradients).