Dropbox icons suddenly disappeared from win 10 File Explorer after a standard reboot. Uninstalling and re-installing Dropbox (I am using only the "personal version") did not help. Nor did-rebooting again. Dropbox otherwise seems OK, including on phone app, where synced icons DO appear. The Dropbox icon in the PC's tray shows a version number of 189.3.8308 and says that sync status is up to date. Can you suggest a remedy, hopefully one that does not involve higher level tinkering? Thanks!