I think that it's important to point this out again. A lot of you members who post here with questions seem to be missing a necessary part. When we or anyone else give you support that requires you to edit something on your device or in the program itself there is going to be change in the way the program then "reads" things.
The save folder contains your options and history. When you don't delete the save folder after making changes, for the most part, the previous program options and memory will show up and not the changes you made. Obviously, I'm not talking about making a content change such as maps and POIs or voice changes. But changing the license or data.zip or the .exe or making a change in the sys.txt, etc. are the type of things that will change the way it operates.
Incidentally, don't concern yourself with deleting the save folder. A new one will be created the next time you start the program. :)