I installed the latest (4.2.0) on my dual 450Mhz G4.
I had the alias put in the dock. When I click on the
"big X" I get the prompt for full screen or rootless. I
click rootless and there is a flicker, and then X is
not running (No triangle below the dock icon).
Starting from the terminal gives the message:
"Must use -quartz when starting". Using the -quartz
option results in x running, but there is no way to
produce any xterms etc.
I am running OSX 10.1.4 btw.