When I check for updates, I see there are seven, all of which say Waiting for download - but I can find nothing to activate the download. When I look at Download History in the same section, I see there are lots, all of which say Failed to download and all with the same date, May 21. And when I look at download history in the Control Panel, there are only 2, way back in February. How can I download my updates, either automatically or manually?