the mac forum here is another place to ask mac questions. apparently some intel imac users are not finding poser 7 to be a completely functional app, but YMMV. one thing about mac users is that they're shy or embarrassed about mentioning problems with their macs, as macs and OS X are always alleged to be trouble-free, hence any problems are usually blamed on the user. tiger and leopard may be superior to vista, which was probably based on jaguar/panther, but be prepared for some difficulties ahead.