Adamn

Hi, I am new to HitFilm 3 Express. I could open and use it, but was prompted to do an update. Now it won't open and a box says I must set my screen resolution to 1024 x 768 or higher. The screen is set to 1920 x 1080, but I still can't open HitFilm and that annoying box always comes up. Can anyone help me with this? My genre is music videos and movie making.