Poser 8 is a great product with many flaws that crop up randomly on many different computers..

Please do not ask Me why..  I just do not know.   When I was experiencing these problems on My iMac  I was trying to get it through to Smith Micro,  but they could never duplicate the problem.  I replaced My Hard drive,  had a tech specialist from apple spend a weekend at My Home..  All to no good at all.  Then along came SR 2.1 and everything goes away except for everything else running so D**n slow..  This I can live with.

Poser Pro 2010 is so much better in all areas for Me except for the slowness it creates in other apps..