At this time, I am unable to get 1172 running on Mac OS X. After first installing, I brought up IDEA which immediately reported a stack overflow error. After submitting that error to JetBrains, I exited IDEA.
I tried to restart IDEA. This time, it doesn't even give me the stack overflow. It starts to come up then immediately dies. OS X reports that the application has unexpectedly quit.
I've now cleared out my cache and tried again, but still get the same problem.
I'm planning on rolling back to 1168, the last version that was stable enough for me to use. If anyone has suggestions on how to make 1172 work for Mac OS X, please let me know.