Hi all,

I thought I'd add a pointer here to a program I've developed called Gnofract 4D'.

- http://gnofract4d.sourceforge.net/
- works on Linux (but not Windows)
- open source
- understands most fractint and ultrafractal formulas and coloring methods
- relatively easy to use
- has been around for 6 years with about 30,000 downloads

If you use Linux, give it a whirl!