[R-SIG-Mac] Threads in R.app?

[Duncan Murdoch]

As I've mentioned before, I'm seeing crashes in rgl when running in 
R.app.  I'm starting to wonder if the Cocoa messages that my window 
receives are running in a different thread from the thread where the R 
console takes input, because it seems some changes are not happening in 
the expected order.  Is this the case?  Is there any way I can force the 
rgl window to have its messages received in the same thread?

Duncan Murdoch