Although the program was built to run on OSX Lion, I don't think it runs as a 64-bit program on a Mac. How could I check to see on my Mac?
Currently the 64 bit version of PRE is available only for Windows 7.
The MAC version still runs as a 32-bit program.
Premiere Elements 10 - 64 bit version is supported only for Windows 7.
On MAC, I see that its 32 bit version thats running.
I can easily see that in Activity Monitor. (for a 64-bit program running, it shows 64-bit in brackets in front of the process name)