Originally Posted by Graham
Well, with Dropbox your content is only mirrored on the cloud. You have copies of all your files in the Dropbox folder on your PC, and indeed automatically backed up to any other PCs, such as your laptop, that you have connected to the same Dropbox account.
If your are referring to the Dropbox folder that resides locally on your notebook/PC, then be careful. If files disappeared from the cloud copy of your DropBox folder, those changes would be replicated the moment your PC connects to DropBox in the cloud.