Does anyone know how to get files into dropbox from my Acer? I have no problems opening Dropbox files on my Acer, but I have no idea how to save files into Dropbox. As far as I can tell, there are two folders that I can see with ES File Explorer: /sdcard/dropbox and /sdcard/my dropbox I have no idea what the second one is for. The first seems to have my dropbox files. But when I copy something from my internal memory into the dropbox folder, it never syncs; it just stays on the tablet. Thoughts?