I use Neb. 4.1 on Macs. The flat fielder has been working fine for me since it came out a few years ago. Its tricky to use effectively, but it works. I don't think it was in the v. 3.3 and came out under v.4, but I could be not remembering that correctly -been too long. Its probably something to do with the trial version if thats what your using.
- one thing thats easy to check, is that some features opened behind the main window so it looks like they are not opening or running. I haven't had this happen lately, but it was an annoyance in v.3 and earlier.
Edited by Ron359, 13 January 2018 - 12:52 PM.