I have a 24 display that, like the others here note, occasionally blinks off to "black." The problem, as noted by others may be the all-in-one cable, which is not easily replaced by the end user. One thing I am going to try is to wrap the cable with some CABLE SHIELDING to prevent interference. Will this work as a solution? I have no idea but it seems worth a try as I am sure the existing cable is unshielded because it's so tiny in diameter. Why do you shield a cable? See:
http://en.wikipedia.org/wiki/Shielded_cable
There are a variety of products out there to shield cables, stuff like this:
http://www.zippertubing.com/EMI-Shielding-Solutions.aspx
http://www.chomerics.com/products/documents/emicat/pg190shieldwrap.pdf
I am going to give it a try, see what happens. Not the most beautiful & elegant solution, but I think most of use just want this to stop blinking, right? If anybody else tries this I would be interested to know if it makes a difference.