I have this problem - the size of the storage of my dropbox is 3,2 GB. Dropbox is telling me that I am using 3.3 GB from 3.3 GB and is full. When I check the size of the Dropbox folder the size is 1.6 GB - the half of the space. Where is the problem? It seems that the data in dropbox is duplicated... Please advise me what to do... Thank you.