How do I fix this Visual Studio keyboard mapping problem?

Question

Something (who knows, possibly even me, though certainly not intentionally) has changed the keyboard mapping in Visual Studio 2008, and I cannot figure out how to get it back to the default.

The symptom that I see as the problem is that when I type the name of a class which is not in a namespace listed in the using statements at the top of the file, the shortcut to add that namespace to the file (expand tooltip), which is, by default, Ctrl + . (period) has been changed to Shift + Alt + F10. There are probably other key settings changed, but this is one that is really annoying me at the moment.

Ways I have already tried to fix the problem which have not worked

• Tools, Options, Environment, Keyboard, press Reset button. (The additional mapping scheme is set to Default, but I have also tried VC #2005; neither fixed the problem.)
• Tools, Import and Export Settings, re-import C# developer settings
• devenv /reset
• Using "repair" from the installer.

I know that I could probably fix just this one key binding by customizing it, but I don't want to do that. I want to reset all of the key binding spec to their default settings.

Answer 1

I figured out the problem: Ctrl + . was remapped by FSI when I installed F#. That's why resetting the key mappings didn't fix the issue: I still had F#. And the answer to which other mappings I've lost is, "Those mapped by FSI" (type FSI in keyboard mappings; there are only two).