Just downloaded the trial and install went ok. Clicked "Help" then "check for driver updates", nothing comes up. It is blank and clicking the right arrow to refresh does not load anything. I have a Sapphire Radeon RX Vega 64 8GB with v20.2.2 (PC details in my signature). Playback of an existing 4K project is extremely choppy even on Preview mode. Vegas Pro 17 runs smooth otherwise. Any help would be appreciated.