As far as I know, it's not possible to switch around the O and X. I don't know about the multi-button press issue you have.

As for the settings not saving, that is correct. Apparently settings are only saved when you either save the settings as default, or while changing the settings ingame.

With "cannot do anything" in the settings, what exactly do you mean? Do the settings not show up? You can't edit options? I had the black screen issue, too, all of a sudden, but in the end it had to do with settings. Enabling HLE mode worked wonders for me. Try enabling the showing of fram...

Better late, than never, eh? 1. The 2 files are saved correctly, and location does not matter. As long as FPse can find the files it's all good. 2. An ISO file is not something your computer "has," it's simply a file type. ISO files are disc images, they contain all files from a certain di...