I've heard that the Intel core Macs run NXT-G rather slowly, but somebody recently mentioned a possible fix (at least for the time being, until a universal binary comes out). Since my Mac isn't Intel-based, I'm depending on readers to test this out. It seems that the MINDSTORMS software runs very fast under Parallels, even if it's slow under Rosetta (something like a 10x speed boost). Just to have a test standard, try dropping a Sound block followed by a Motor block, and compile. On my laptop (1.67 GHz G4 w/ 1 GB RAM), it seem the compile time is about 14 seconds, with a sub 2 second download via USB. Can anyone comment on the these times on an Intel-based Mac under Rosetta and Parallels?