We have received reports of the PIT freezing on startup on older versions of Mac OSX, and we are working to resolve the issue. We recommend that anybody who is planning on submitting 2014A proposals install and test the PIT as soon as possible. If you have any problems please submit a HelpDesk ticket at http://helpdesk.gemini.edu.
We have discovered that this problem is caused by a bug in Java version 1.6.0_51-b11-456-11M4508 and can be resolved by downloading the patched Java from apple.