I had same issue and tried the Resolution change with no success. I bought TT Premium on 2/5/22. After downloading, it did its usual thing of checking for updates. After I restarted it, it showed a blank dialog titled TurboTax 21 - Activation. If the dialog worked, this is where you put the activation code. Intuit support has Q&A on this and claims that changing the screen resolution will fix it - it doesn't, and even so, the user should not have to deal with this, the development team should take care of it. The problem dates back to 2020 where I had the same problem when installing my TT 2020 software on new PC later in the year (September 2020). I did not have problem in Feb 2020 in the year (February 2020 so some SW bug seemed to be introduced. I contacted TT Support and was known problem that apparently still exists, I gave you a pass last year. Fix this, Intuit! I am using a 2020 LG Gram 17 at default resolution, nothing outside of what you should be testing.
