On 2/25/06, derek holzer <derek@x-i.net> wrote:
2) OSX

* As I've reported several times before, the GUI ranges from slow to
unresponsive. The -nrt flag does seem to help fix this problem, although
I'm not sure if that means more audio glitches or not. The only other
workaround seems to be to reduce patch complexity and the number/update
times of GUI elements.

There will probably be more dropouts, so the choice is more responsive GUI or fewer dropouts.  I have never found a solution to making Pd particularly usable for audio on OSX.  I use SuperCollider personally.
 

* PDP did not get the testing it needed because most participants
neglected to install X11.

http://www.apple.com/downloads/macosx/apple/x11formacosx.html

That works for 10.3.  For 10.4 you might need an installer disc.