Enable separate graphics and text windows

[Jason Sikes]

Create a way to enable the user to separate the graphics window from the text window. Perhaps as one of the SCREENMODE commands (TEXTSCREEN, SPLITSCREEN, FULLSCREEN).

[John Weir]

Keep it simple. The split screen was nice for me - but having a single window is also nice. My daughter, who is just learning the computer was getting the window lost. Having one window would avoid that.