Odd. Desktop iMac, older Core 2 version, it only takes me from my background 2% cpu use to 7% cpu use. Perhaps it is making heavy use of the GPU, which I wouldn

Odd. Desktop iMac, older Core 2 version, it only takes me from my background 2% cpu use to 7% cpu use. Perhaps it is making heavy use of the GPU, which I wouldn't see in the cpu usage stats. (I add: using Safari.)