我也是——我從 Parallels Desktop v.16.x 更新到 v.16.1.0，這也自動更新了 Parallels Tools 的版本。現在所有 Paratext 視窗要麼全黑，要麼全白。
我試了兩件事，但都沒能修復這個問題：
(1) 啟動 Paratext 時按住 Shift 鍵，並「重設設定」。沒有用。
(2) 點擊左上角的漢堡選單圖示，按向下箭頭鍵 5 次，然後按 Enter。這會開啟「Paratext Settings」對話方塊，顯示為 OK。
取消勾選「Enable Hardware Acceleration」，點擊 OK。重新啟動 Paratext。
問題依然存在。
Paratext 9.0.103.41
Windows 10 version 2004 Build 19041.572 <— 我今天剛注意到 Windows 10, version 20H2 已經發布了。也許我該試試更新。
Parallels Display Adapter v.16.1.0.48950
在另一個虛擬機中，因為我也來不及取消 Parallels Tools 的更新，Paratext 8.0.100.98 仍然運作正常。
Me too—I updated from Parallels Desktop v.16.x to v.16.1.0, which automatically updated the version of Parallels Tools too. Now all Paratext windows are either solid black or solid white.
I tried two things which were unsuccessful in fixing it:
(1) I held down shift while starting Paratext, and “reset settings”. Didn’t help
(2) Click the hamburger/menu icon at the top left Press down arrow 5 times and then enter. This will open the “Paratext Settings” dialog box, which displays OK.
Uncheck “Enable Hardware Acceleration”, Click OK. Restart Paratext.
Problem remains.
Paratext 9.0.103.41
Windows 10 version 2004 Build 19041.572 <— I just noticed today that Windows 10, version 20H2 has been released. Perhaps I’ll try an update.
Parallels Display Adapter v.16.1.0.48950
In another VM in which I was also too slow to cancel the Parallels Tools update, Paratext 8.0.100.98 still works OK.
機器翻譯自 English
