I'm having the same problem here. OSX 10.9.2. MacBook Pro Mid 2010.
I was trying to change the audio preferences in PD when it hanged.
I have deleted saved application files but could'n restart PD ever again. The app icon keeps bouncing on my dock.
any ideas? thanks.
EDIT: I trashed preferences and got PD back again!
It seems that the website with the link for DY2 is down. Can, please, someone upload the zip or send me over by e-mail (jcordeiro.pt [at] gmail [dot] com)? I was relying on this for a weekend project and suddenly all my plans went down the hole