I'm sorry to hear that you're having these issues.
Any significant changes in drivers or something that happened prior? Is the monitor detected in the device manager? You might try updating the driver to see if that helps. If not, you might try calling 800-SAMSUNG for further troubleshooting. If they're not able to assist, they can set the unit up for service.
I recently purchased a Samsung Syncmaster 2223 monitor/tv. I've used it without any problems for about a month now. (And loved it!)
This week however, my monitor doesn't seem to be responding. The monitor is black, with the blue light only blinking every second or so (like it used to do when my computer was on "sleep mode".) I've tried plugging in the monitor to other computers, tried different cords, but it does the same thing- just blinks every second or so. It recognizes the cable being unplugged, and it shows the analog test every once in a while when I press the menu buttons.
Any suggestions on how to fix the problem or is this a hardware issue?