I used specific electronics that was developed to control 256 leds trought serial port in real time. Now i need something much more powerful, I want to control at least 1000 leds in real time. Is it possible to use monitor electronics to control leds or decode signal direct from graphic card to control leds? Levels of gray don't interest me at this moment, only On/Off and big number of leds. Is there anone who can help?