Okay, it has been over 48 hours without a response. This was my first post to the forums, so I'm unsure what to do. Do Adobe reps visit the forums? The web page claims this is my avenue of support. What is their usual response time? Is there an escalation path? While I would love for this bug(?) to be fixed, I would also appreciate any type of work around or an explanation of what Photoshop is trying to tell me (calibrate? 'more precisely'?). Someone in Adobe has to know what this means. I can upload a sample picture to see if that helps or to see if others can replicate.
Pauley, I've experiencing the same problem. Have you, by chance, independently solved this problem? If so, I'd appreciate your guidance.
Thank you. - John
Ha ha. Very funny. The video ends at 13:02. The real answer is this according to my experience. When you get this error it means that Photoshop doesn't like where you've put the two ends of the constraints. It wants you to put them exactly centered over the line you want to straighten. Once you do that then try to move your centerpoint.
BUT!!! there's a double secret control on the center point... If you click on it, you'll notice you can drag it up or down (or side to side) to warp the curve to fit it more closely to the line you're trying to straighten. In a few experiments it seems like making several tiny adjustments on all three points works better. Sometimes, it seems that Photoshop just can't figure out what you're trying to do and you have to put the control points closer and closer together until the program can handle it.