OK, since Fuyu said that it worked for him, I rechecked things; apon re testing I can now get simple things, like the movement bar and such to respond. However big item changes, such as changing the draw method, and the lines displayed (single or multiple lines) requires a complete reloading of the game. If you start the game with multiple lines, or a PLE draw method, you must reload to change these things. Now in my mind such interface changes requireing a restart are sometimes unavoidable, as the changes requires a reinitialization to take a effect. However when this happens the User should be prompted and told something like "You have made changes to the interface which requires the game be restarted to take effect". Please either add a pop up dialogue box to prompt the user, and let them know what's up, or fix it so that these options are responsive when selected, like all other BUG options.
I also did a full look at the diffs between RevDCM's and BUG's code. I found a couple of lines in CvMainInterface that jdog added that was in some plot list code, I removed them, tested, and put the code back in, no change. All other code differences pertains only to the scoreboard and button positions, or revolutions themselves, and is needed for RevDCM, also I can't see how the code could effect the PLE at all. Just to completely ensure there wasn't an issue with code differences between RevDCM and bug, and also due to Fuyu's report, I rechecked thing using Better BUG AI (it uses the latest BUG SVN). I get the exact same behavior from Better BUG AI, so I am sure this issue is in default BUG code.