So jasc had the same issue, if you ty to display a 12 bit or 16 bit lut color and only have a 10 bit monitor most cards discard the value and if you try to hold 12 bit + 12 bit in 16 + 8 the program crashes, you need to either use the windows scheduler o write the memory space larger than 512 x 512 which would make it a graphics card or a avn512 cpu, or figure out how to dynamically scale a work space on the hard drive for 128 bit color values for rec 2020 cards but you have time, nec pa241w is one of the few monitors that can display 32bit plus and 8 alpha channel and 64 bit plus 4 alpha channels in 10 bit mode. nice program at least it saves the last image you were working on. I have one of the last jasc 9 developer licenses to develop of their code that is still granbdfatheered in, itan be contributed to the project as long as the project stays open source.