Bill,
One of these can be problematic if you are not prepared for it. Various video modes cause the sounds to change pitch - dramatically. Counter-intuitively, at least for me, the lower the display resolution (smaller window) the lower the pitch. I normally work in 1024x768x256 (SF7 for me). The following pars, based on Albrecht Niekamp's "Out_of_Orbit", were all designed to be heard at that display resolution. Try displaying first at 1024 and then try other resolutions to see the effect. This is a bit troubling in that it is not easy to get people to view in the intended resolution.
I find it productive to use Viewwindows modes for music fractals.
If you use something like this: viewwindows=6/0.75/yes/320/240 then the same size image will always be used unless the user has selected a smaller display resolution. And if they do, they get a warning message about using full screen instead of a viewwindow. Jonathan