Is the cable connected securely? You may need to check your video card also. You may be able to disconnect the cable and get a red, green, blue icon on the screen. If that appears normal then there is nothing wrong with the monitor itself, it may be the cord or the video card.
Hope this helps!
Well...it's a Dell and even when it's well...it's still a Dell.
Have you tried the monitor on different system to eliminate the tower being the problem? Some have updated and/or rolled back drivers to help cure this problem, which seems to be a common issue with this LCD. Personally i think the contrast ratio is inadequate.
Good luck with your Delllll...
Looks like you need to purchase a new monitor. If it's too worn out then it's the outcome. I also had the same problem before and I ended up buying a new one. You should not experience that thing if it's new.
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