Opened both from desktop icons. After this experience, I closed down both instances, and opened 2022 FIRST. I then ran 2023 and was able to view each years' respective file on separate monitors. Must just be some glitch in TurboTax's servers, as it appears that this is the first year they monitor which account is accessing their app. Glad that it finally did work as in the past, for this method is my SOP in tax prep!! Hope it does NOT happen again (fingers crossed)!!
