I had the same issue and appreciate your links, thanks. However the indication (short-long-short) was not accurate. I switched adapter with no luck, but when I switched to another 23" Cinema Display it worked fine as in your experience.
There has to bee something else wrong with our monitors. I was lucky, we had two others standing around so I'm all set.
I have no other information that might help you, sorry.
Does anyone have any troubleshooting tips for this issue? My McBook Pro hard drive went down so i was without my computer for a couple of weeks. I just got a new one installed, got it all set up from my backup and now my display isn't working. I checked the display set up it is seeing the display but nothing is showing up on the screen. Any help is appreciated!