Ah, I see... Yes, korg user net is a little confusing. It says the latest upgrade is 1.1.10. I have to go the the korg user net shop to find the upgrade to 1.2.x which is intended for intel-macs. And that means I have to get a dongle. And THAT means I will not get any good sounds before easter ...
Got my Macbook Pro today, 2.5 GHz, 4 GB ram, running OSX 10.5.2. Installed Korg Legacy Collection v 1.1.10. I use the built in sound output set at 44.1 /16 bit, latency is default 5.80 ms. When running Legacy Cell and selecting 000:Vaporization Pad, cpu load idles at about 55%. Activity Monitor ...