When FIV starts up, a bunch of ‘font not found’ messages may show up in the command window. These can be safely ignored.
A good portion of ImageJ’s functionality has been compromised to incorporate functional and anatomic layers. Its shortcuts don’t work. It is aware of only the functional image (or the structural image if no functional image is loaded.). Some of the ImageJ analyses may only operate (including histrograms) on a portion of the image.
Default print settings are set to black and white and portrait orientation. They must be set manually to black and white and landscape.