Update...
I had set it on full screen 1280 x 720 on the smaller of two monitors that I use.
I also have Display fusion installed and later changed the Primary Monitor to the larger.
Rebirth settings were confused.
Upon resetting the primary, it worked and I could access the Graphic settings.
This enabled me to change to a window and run in either monitor,regardless of primary monitor selection.
I thought I should update,just in case someone else (no, not him,lol) makes the same mistake.
