Hi,
 
I am consistently getting into a situation where my keyboard becomes disabled, and I'm actually using my right mouse button to put down any calibration helpers. Intially, I had to restart my computer to get the mouse to function normally. This time I had to go to my Control Panel and reset my mouse. This always happens during calibration, and it prevents me from smoothly transitioning into the modeling phase of the workflow. It's as if the program has remapped my keys/made them sticky or something.  
 
-Mark Bradshaw

Hi,
 
  Could come that the focus is somewhat lost by the main application.
To check that, try to "force" the focus to the application (by clicking once in the 3dview for example). Does the keys respond now ?
 
Check also that you don't have a key sequence that switches your keyboard from English to ??? (my case French). By default Alt+shift switches the keyboard settings, if you have several set.
 
Stef

It's still switching left mouse button to right, as well as turning off my keyboard.
 
This is really bad. I can't believe your going to release this.