Lost folder contents

Working on my Acer Aspire yesterday, I went to open a file in Photoshop and couldn't find the file in the folder where I knew it was located. Furthermore, none of the files previously located in that folder were there anymore either, though the folder itself was in its proper location in the file hierarchy. After searching desperately around, I finally found the missing files in an entirely different folder. That folder had always been there, but with nothing in it. What Gives? Anybody?

Windows 7 is stealing folder contents now.