In my opinion the library not opening up is a major problem with Poser Pro2010.
I have tried everything my skill level is capable of to keep the darn thing open. To no avail. In the beginning it was no problem. It stayed open.
  Now the only way I can get it to stay open is if I turn off my virus protection. I have to use Dimension3d's xl library and it totally limits the library functions.
   I say this is a major glitch with Poser Pro2010 because it is the only software I own that shuts parts of itself off over whatever this issue is.
   If you are really good at understanding how the computer operates and how your virus protection works it is easy for you to figure it out. For those of us don't have that skill level the darn software should run properly. Look at how frequently this problem occurs in this forum. I truly hope SmithMicro addresses this issue on the next release.
cheerio
lululee