I had no memory left on my hard drive for files, therefore I moved ALL files to Dropbox and still my start up disk is telling me there is no memory storage left. No files are appearing on my hard drive and my Dropbox is working properly, yet I'm still unable to upload files to my hard drive ...why is this????
Dropbox isn't an online-only service - it uses a folder on your HD to store a copy of the files. If you "moved" your files from your drive by dragging them to the Dropbox folder in your user folder, they're still on your drive.