hi,
rdex-fluxus crashes in the osx glsl compiler. we were talking about this
some time ago, but i don't remember if the issue was resolved.
http://lists.pawfal.org/htdig.cgi/fluxus-pawfal.org/2010-April/003375.html
it is probably an osx bug, but removing 'const' from the line
'const mat3 lcc2rgb = mat3(' in falsecolour.frag fixes the crash.
best,
gabor