Notepad++ has this feature where you can right click + mousewheel to scroll between documents. My problem is that I hit this all the time by accident resulting in minor (yet cumulative) annoyances such as losing my place when I have many documents open.
I disabled Document Switcher but the switching still happens (just without the popup window showing a list).
I also looked into the Shortcut Mapper, but unfortunately this particular functionality is only listed as a keyboard shortcut which is ctrl+tab. I really just want to remove the mouse shortcut.