Using an IMac running 10.5.8.
I use Firefox usually, but the same situation happens in Chrome and Opera.
However, I just downloaded the newest version of Opera, and the analysis board does not open at all, now.
I never use Safari because it is too slow. I tried using it as an experiment to see if I could report back with the most complete answer possible, but I gave up -- it wouldn't load at all so I could even try to get to the correct location.
Are we on the same page here? The analysis board I want to flip and which does not flip is only reached once you are inside a master's game -- reached from already being on the Explore page. So you look at Pedro Carlos v. Jose Morphy, e.g., and see an alternative line you want to explore, perhaps from a book, open the analysis board and it will not flip.
Archaic:
If somehow flipping the board is in fact connected to cheating and that is why chess.com limits its use, that of course is fine.
It is still inconvenient but by seeing the logic behind the decision, it would be easier to live with, just as by understanding why you don't want to go Nf6 at a certain point makes the concept easier to understand.
Flipping certainly doesn't need to be the issue of the century.
There is NO connection between flipping and cheating.
Everyone else on this site can flip - so there must be something so far unexplained in your setup.
1. Have you tried resizing the Analysis Board window? You're missing a whole bunch of controls - not just Flip Board. (If I make the Analysis Board window narrower, the controls go below the board and I have to scroll down to see them.)
2. Are you accessing chess.com from a PC? (A mobile device may have a more restricted interface)
3. Which browser are you using?