This is the script I was using when first facing the graphics issue on NitrOS9, all commands can be put into a single line, I was just seeting them one to a line to keep each step in sequence: display 0F 00 05 display 13 display 15 80 60 display 1A 14 prompt display 12 This will select 256x192 buff on white (h0F), clear the screen (h13), center the graphics cursor at decimal 128,96 (h15) and draw a buff colored circle in the center of the screen radius decimal 20 (h1A), the last DISPLAY statement...