Erm.. this is an embarrassingly simple bug report.
Having had a few days happily messing with Max 6. it now refuses to even start up. I get as far as the authorisation popup, click on demo… the clue window makes a brief appearance, then it’s back to the finder.
The beta’s version 6.0.0, demo has 21 days to go. I’m running it on a recent Mac Book Pro, running Mac OSX 10.6.8
I tried re-installing, didn’t make any difference.