Also submitted a bug report from within VS with the same name
In VS2010 RC, if I have a C# file undocked (pulled off to second monitor) and I click on the NCrunch red/green indicator next to any line of code, the file editor stops responding to keyboard input. Speficically, I can no longer use the cursor (up, down, left, right) keys, return, backspace, or type text. It does still respond to mouse input.
If I re-dock the file editor into the main VS window, the issue goes away, even if I undock it again (up until I click the NCrunch red/green indicator again).
I'm running:
NCrunch 1.40.0.23b
Visual Studio 2012 RC (v11.0.50522.1 RCREL)
ReSharper 7 EAP (Build 7.0.64.89 - from 2012-06-09T03:14:46)
Update: This may actually be a bug in VS2012, as the same thing occurred after a ReSharper menu, although it's consistent with NCrunch, but not with ReSharper.