When you click the double checkmark to add her to the workspace, does the text under the window say you have a figure in the scene, it's just not visible? That would indicate a problem with the geometry file, in which case it's best to try re-installing the package to see if that clears it up. If that doesn't clear it up, or if you're not showing that there's a figure in the scene, then you may have to open up the CR2 file in a text editor and see what file it's looking for, and where. If that's not something you're comfortable doing, post again and we'll try to help.