title: Tab key working strangely in Matlab editor?
body: <p>My <kbd>Tab</kbd> key has suddenly started acting strange in Matlab (R2011b) editor. It's working <strong>backwards</strong>!</p>
  
  <p>Pressing it doesn't add tab spaces and whenever I press it after a couple of spaces, the cursor comes back to the first place.</p>
  
  <p>I've checked the Matlab keyboard preferences and everything seems fine. Tab action is assigned to the Tab key. Also, turning the Tab Completion on/off or changing the Tab size didn't have any effect on it.</p>
  
  <p>Anybody has any idea how to fix this?</p>
  
  <p><strong>Note:</strong> it's working fine in other applications and also in the console window.</p>