Hey, there! You can change the size of the capture and the CRT on your second display. In the zip, there's a file called "SuperCRT.ini". You can modify the values for the capture window. Change it to the values below and you have a full capture for your average monitor.
SrcX=1920
SrcY=1080
The CRT display window can also be resized for viewing but clicking and dragging the bottom right corner to fill your screen.
Now, go find a way to give them the money you promised! haha
You have to be on two monitors. The program will consist of two windows. One that will look like just an empty frame and one that's the CRT-looking version of what's inside that empty frame window.
You'll need to have each of those two windows on separate monitors or you'll get that effect like holding two mirrors at each other.