If any of my co-workers adds, edits or deletes anything in Dropbox it does not sync for me. If I add, edit or delete anything using Finder on my MAC, it will sync. I can see their changes when I log in on-line but when I look at the folders through Finder, there are not there. I have logged in and out several times, rebooted my computer, uninstalled the app and reinstalled. When I click on the icon, the number of files being synced is a larger number every day.