Albrecht,
As there is no feedback sofar I would like to know if the xfractint users are able to generate my images.
In my efforts, I failed to recognize the relationship between two routines and the current developer's version (patch 13) of Xfractint will not run other formulas. It should run yours, but even with that I would expect some sporadic crashes. There are several variables that need to be addressed in the ultimate solution; 1) DOS versus Linux, 2) Extraseg usage versus far memory usage, 3) The order in which the routines get called such that the correct variables are set and memory allocated before they are used. I need to think about this carefully, and sleep on it (several times), to ensure I get the solution right this time. For now, it is best to use patch 12. Jonathan