Don't be surprised if other high-end (and not so high-end) applications do something similar, especially in the graphics field, which is so processor intensive. Poser has, in one sense, stopped supporting Win9x, if only because trying to render a Millenium figure under Win9x will crash the application as often as not. Curious Labs pretty much says, "Nothing much we can do about it. Try Windows 2000/XP." Win9x/ME is STILL kludgy, bug-ridden mess of an OS, a frankenstein's monster of 16-bit and 32-bit code. For anyone using a computer for profession purposes, it has always been a poor choice. I realizing that upgrading your OS is a money issue, but frankly, if you are seriously making an income from your computer in this field, stick a crowbar in your wallet and upgrade to a professional OS, regardless of whether you plan to use Bryce 6 or not. You'll thank yourself every time Application X doesn't crash like it used to. This isn't a ad for Microsoft (if I bite for XP it will be grudgingly at best), just my $0.02.