Apple Logic Pro /LogicExpress Discussion

Snow Leopard (and hence Logic) will not necessarily run in 64 bit mode 
even if you have them installed. I have a 2008 Mac Pro - intel with 
quad core. I thought I was all set up to run 64 bits in Snow Leopard. I 
discovered I was wrong. See the article below for how to make Snow 
Leopard boot into 64 bit mode and even if you can do so.

http://www.9to5mac.com/snow-leopard-64-bit-32-bit-firmware-efi

In particular type this in the TERMINAL utility application :  ioreg -l 
-p IODeviceTree | grep firmware-abi