I bought an Upstar 28 “ 4K monitor 3 years ago, but all of a sudden it’s now taking 30 minutes or so to start up from my Windows 10 PC…and this is with an SSD Drive startup. The Upstar logo occasionally flashes on the screen during the 30 minutes when it vainly attempts to display the opening screen. I’ve never had a startup problem with this monitor before, and I’ve tried everything I know to get it back to normal, but no dice. When it finally displays, everything is perfect. Their U.S. Customer Support is apparently non-existent. Anyone have any ideas?