It doesn't seem like i can. I can keep trying. Pretty sure it is in "Fullscreen" mode.
EDIT: Okay. Clicking on the edges of the window, lets me change it's size by dragging it around, that in the end, allowed me to fix this issue. I don't remember this happening in the previous version. Strange.
Thanks! Perhaps default the Program to not open as a fake "Fullscreen", and going outside the Monitor range. Make it open first as a small Window, so you can drag it around as you please, until you put in Resolutions and such.
Take care.