I downloaded the version for leopard. I clicked on it (and also put it on my dock). It tells me it might take a few minutes to open the first time I use it. I waited, tried again waited, and again and finally waited half an hour. Still nothing.
It does say...
"OS X 10.5, Leopard — Universal .dmg (Please first upgrade X11.app to at least XQuartz v2.1.4.)"
...but I don't really know to what this is referring and I didn't do it. Could this be the problem?
Thanks!