Probably the lead from the monitor to the computer, make sure that it is pushed fully in at both ends.
Check the monitor cable. Also check the monitor settings. There is a chance that you will have to replace the monitor especially if you have a CRT monitor.
If your PC tower is not communicating with your monitor, check all of your wires and check to see that your drivers are all up to date.
Am guessing your having problems with the monitor...First check if the monitor's (the screen) has any wires that are damaged, try the monitor on a different computer if the monitor works in a different computer than it could be the video card that is giving you a hard time.make sure all cables are plugged in correctly and check the video card to see if its damaged or is it properly adjusted in the motherboard, and also check the BIOS settings to make sure the video card is selected.
i wouldn't... blinking means its bad, mine came on the other day and i called the dealer to see if it was ok to drive and they told me if its solid drive it in, if its blinking tow it in.
See if you can go to a site in the Web Browser or look at the lights under the disk slot and see if the green one is blinking
You check if there is a red cross on the volume icon at the far right of your monitor.
Check coolant level in RADIATOR when cold When light is blinking turn on heat and see if you have any. If no heat good indication that thermostat is stuck in closed position and needs to be replaced
You see nothing in your monitor!!
When you see a blinking yellow light, proceed with caution.
Because the configuration on the first monitor has to be working correctly in order for the second monitor to work correctly. Also, so you can see what you are configuring on the first monitor.
First thing is to determine if it is actually the monitor and not your video card. Try downloading the latest drivers for your video card and monitor and see if it clears it up if not I would try another monitor on your computer and see if it still does it on the other monitor,if so then its the video card that's causing the lights(you already tried the latest driver so its probably gone bad try contacting the maker and see if they will replace it if your warenty is still good(sometimes they will replace it anyway). if not then its probably gonna mean buying another monitor(is it a crt or a flat screen?) if its a crt or a big heavy deep cased monitor sometimes when the capacitors are going out you can hit the side of the monitor case (not too hard) and see if it changes anything. If you see any changes in the picture when you hit the side of the crt monitor that's probably the problem and you will need to buy a new one most likely because it would be more expensive to fix it.(hitting a flat screen monitor isn't a good idea though).
check fuses first, if good the wire will be yellow at the base of the steering column, some you will have to remove the lowest panel to see wiring, it would probably be disconnected, generally push in and twist one quarter turn