GEM will not run on 10.1 at all. There's nothing you can do that will make it so without rewriting essential portions of the code.
Also, I would strongly recommend uninstalling anything in fink related to OpenGL.
cgc
Quoting Hans-Christoph Steiner hans@eds.org:
Actually, I stand corrected on that one. You don't need to install
'glut' or 'glut-shlibs' because Apple now includes glut as a Framework..hc