Getting an error "Unable to find graphics mode" on Windows 10.
You should be able to get around that by running in windowed mode, put "window" at the end of the command line in a shortcut (like "c:\program files\stockboy\stockboy.exe window" for example). It will be in a little window then, but it should work! It seems your video card doesn't want to do 640x480x256 color mode.