When I go to a folder there is no Upload button. If I refresh (sometimes several times) it comes back. But this has become a painful experience just to get a few files uploaded.
And Dropbox is getting slower and slower. For example, it will not let you do anything until all the little icons for each file has loaded. Sometimes, for a bigger folder with pictures, it takes ages. Why not turn this nonsense off so that users can quickly upload at the end of a long day.