I've been trying to use stipplegen, but it's horribly buggy. It will usually load images fine and start generating stipples, but it won't let me pause or save. Clicking on the button does nothing. Often the slider controls are unresponsive as well. Clicking and holding will actually drag the buttons around. Sometimes a button will work once in a while for no discernible reason.
What can I do? It's immensely frustrating to have it run a few hundred generations, make a nice image, then be unable to save it. I'm running Stipplegen version 2.02, java 6, and Linux Mint 13.