If I open the curve editor from the timeline iclone fall. It is not project specific becouse if I open it in a minimal project, same problem. But when I open curve editor from the plugins menu, it is fine. I have rtx 3070 with 3 monitors in 1920x1080. I don't know it is important or not. I have windows 10 (1809) but it is not the new becouse i hate the new variants. iClone 7.9 worked perfectly in my system. 7.91 not. I will try to reinstall reallusion softwares, but just only if you can't reproduce this problem. So please write me if it is not a bug from your side.