I noticed that unexpectedly Visual Studio 2010 changed the keyboard layout.I tried some solutions like:
- Going to Windows\' Control Panel and removing other
[Edit] What I was checking was Tools->Options->Keyboard, thinking someone accidentally remapped to an earlier version but after some checking, Ctrl-Space was always Complete Word going back to VB6 so I doubt that was it.
Still, it should say 'Default' in there. You could always try resetting it as well but I don't think it's going to be your solution.