Those two files don't deal with the keymappings so I'm not sure why they would have worked but here's something you could try...
1. Delete the following files if they exist on your system:
- ControlMap_Custom.txt (root Skyrim installation folder)
- controlmap.txt (Skyrim\Data\Interface\Control\PC)
2. Start Skyrim and load a character
3. Open the Menu and go to the Controls section
4. Click the Default button
5. Save
6. Reboot the game to see if the changes worked
Good luck and report back please.