title: Eclipse (Android): When clicking 'Run'/'Debug' nothing happens
body: <p>I have just installed (extracted) properly the ADT bundle for eclipse + android SDK and also set a new AVD which is currently working on my background and looks fine.</p>
  
  <p>my problem is: once i create any app and click the <strong>'Run'</strong> or <strong>'Debug'</strong> button, nothing happens.
  I don't see any 'launching : (nn%) ..' message at the bottom and the AVD is not effected at all - nothing happens!
  I have no idea what is the problem but a while ago i installed this exactly same way and had seen this issue before. could anyone please advice me what to do?</p>