It took a bit of time but the solution is quite simple :) (I have Apophysis 2.04jf build 002) 1) The first problem is the path to the export renderer. Make sure there are no white spaces (and probably any other special characters) in the path. Best is to copy all of the Apo's files to a simple named directory (for example c:Apophysis) and set paths to this directory (at least for the export renderer). Probably there is some error in the code, so when the path is for example "c:Program FilesApophysis 2.02hqi.exe" you will get an error message (in that dos window that disappears so fast) that "C:Program" is not an executable program. So avoid any white spaces in the path. 2) The second problem was buffer-depth value in the export window. I had to choose anything except "32-bit float". Maybe you'll have to try what will work for you.