[PD] pd crash on mac os x on exit audio render

[rene beekman]

in the series of "weird and interesting problems", this is another one
that i recently ran into on the computer of one my students.
it's a powerbook running mac os 10.6.4

any time we switch computer audio off, pd crashes and quits.
it doesn't matter whether do this via the pd window, keyboard
shortcuts or messages, result is the same every time.

we tried nightly builds, to no avail

the interesting thing is, my own machine runs the same os and pd,
without a hitch.

attached is the crash log

i did not have enough access to the problematic machine to do further
diagnostics

any ideas as to what might be causing this would be much appreciated :)

thanks!

rene
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