Where is your Collections folder located? You should be using the one under Poser 11 Content, not the folder located in Program Files. And my recommendation is not to move content into that folder but to create shortcuts for the files and copies of their icons there if you are so inclined to pursue this route. This is the way the Library feature functions within Poser. If you don't carefully manage and structure your folder hierarchy to reflect the different categories you want to track, you will wind up with an unholy mess. Using the feature within Poser to manage your content will preserve the original location of your files just in case something goes horribly wrong with the primary folder; you can delete everything and start over again without reinstallation.