I'm sending this in response to your note to regarding the "near" simultaneous use of mono and color screens. I've included a demo program in turbo pascal for using both screens. The methodology was given in a PC Tutor column in PC magazine and I translated it from Basic to Turbo-pascal. The advantage of this method is that the state of the previous screen is saved and cursor is where you left it when you return to either the color or the mono screen. Of course, you can explicitly clear the screen whenever you want to. Feel free to submit this program to the library if you think it is of interest to others. Nate Liskov 6/17/85