Yet another reason why everything should not be on the cloud. Dropbox is down. This is not good for the millions of people that use this service. The service has been down for about an hour. Even if you see the green tick, your PC is not really syncing anything. You are not able to upload any new files through website or desktop. The website does not even open. Could it be a server issue or something bigger? Go to http://www.isitdownrightnow.com/ for quick way to find out if any site is not working.