In your LW Library window, you need to click onto a folder & then select a file to the right of it & then press the Explore button. If the folder has a small arrow next to it, click the arrow so it opens & click onto one of the folders inside & then click on one of the files before pressing the Explore button. If you find it's still hapening, press the Refresh button. This will recheck all your files & folders. And then repeat the operation. If still have a problem. Then post back.