Yes Poser 6 crashes in Tiger as soon as you hit a button and Poser 5 hides its e. g. save windows (in Tiger worked fine in Panther), so you can't save and mostly it crashes after that. I already had the poser 6 problem in panther, crashed all 5 minutes, haven't done one single render with it. wait with the update and wait even longer before using poser 6 on a mac. the only thing CL told me was also to wait for the update. well, I should have asked them if they would wait with the payment too:-)