Hi guys for me ,I have many bugs in 2010, from just gentley clicking on any figure ,using any tool , twist/rotate and  transform ,makes the model parts jerk to the right.( Alot worse the P5/P7) . And adding any prop to the scene and clicking on them sends them to the right to.  I have to move parts using property dials only.
To ,when loading a mat for a figure , and the figure in the scene turning black.
2010 must still be in beta and look forward to the first update.
I hope to rig  my own models, but dear not just yet ,SM seem to be quite quick at fixing ,looking at Poser 8...........we`ll see.........
I to thought it to be an AV prog problem , I run AVG internet security 2009, and have turned it off, removed it and still the bugs remain, I had only rendered one model ,V4, with "Hear no evil " gear. And removed all unused morphs to shrink the file mem.
 I ran out of memory ? .........With 3 gig of mem I was really surprised...........