Hornet3d
Wise
OK, question . . . have you downloaded and installed all the content that comes with Poser? That may very well be why you're seeing an unpopulated Library, because the following is a partial screenshot of what I see when I click the Library button (see arrow). I did resize it, as it opens very narrow, so it would fit in the right-hand section of the Poser UI as it does by default. I also deselected Drag-Dropping Enabled so I wouldn't have to worry about where it landed in the UI.
View attachment 48351
If that's what you did, did you then close Poser, and update the Poser.ini file? I would think that would work. Changing the Poser.ini file first won't work, or at least I don't think so, because it gets overwritten when you close Poser. Hmmmm, now I'm not so sure in which order you should do these things, but first of all make sure you installed all the Poser content that comes with the software.
I think the Poser.ini file does get rewritten from my experience at least. I have many of the tabs on a second screen including the library and they they are in the same position each time I launch Poser. I do have a default scene set to load but here is the rub, sometimes I mistakenly close the perimeter dial tab and if I close Poser while it is still missing when I open again it is not there even though it is a default scene. I can only assume the Poser.ini file is rewritten with this change when I close Poser.