My experience with SR1 has been almost completely positive:

• External binary morph targets scene-eating bugs mostly fixed, not quite perfect but never fatal so far
• Greatly improved memory management during very high rez, high option renders, in my experience much better than Poser 7 with no patch
• Texture crawl bug killed
• Many various cloth room bugs killed

The one thing that gives me trouble is Poser 7 will sometimes exit silently when rendering with Smooth Polygons enabled (mental note to mail a scene file like that to e frontier support).

I'll point out you have a VERY unusual system config (Mac OS + Vista on the same box?)  My Intel box has no problems like you're describing.

My Freebies