I was installing and activating TT 2021 Deluxe. The Activation Screen kept popping up as a blank white screen. The solution for me was to change scale, either up or down, while the blank screen was up. After the change it showed the activation screen but the controls were apparently not active. None-the-less, I clicked in the License Box which did not appear to be active, typed my license code without dashes (it did not show up in the box), then clicked the apparently not active blue Activation box (two times after a 5 second delay). That actually worked to get past the activation process. Then I started a tax file, saved it, closed, and was able to reopen TT and the file as it should work.
