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Mathematica 7.01 and Mac OS 10.6 (Snow Leopard)

• To: mathgroup at smc.vnet.net
• Subject: [mg103928] Mathematica 7.01 and Mac OS 10.6 (Snow Leopard)
• From: Andrzej Kozlowski <akozlowski at gmail.com>
• Date: Tue, 13 Oct 2009 07:18:38 -0400 (EDT)

I have been experiencing rare but very irritating problems running  
Mathematica 7.01 under Mac OS 10.6 (Snow Leopard) on a MacBook. What  
happens is that for some reason the kernel suddenly quits during an  
evaluation. When I try to restart it (by evaluating some expression) I  
get the message: "The kernel failed to start because you attempted to  
run more Mathematica kernels than you have licensed." There are two  
buttons, Purchase and Cancel. I find it rather annoying that the  
Purchase button is selected by default but not half as annoying as the  
fact that clicking on either button produces no effect. Everything is  
actually frozen and there is no way out other than force quitting  
Mathematica.

Has anyone experienced anything similar? As I mentioned - this seems  
fairly rare; it has happened twice since I installed Snow Leopard  
about  a month ago and I can't reproduce it.

Andrzej Kozlowski