title: Adb can't find my device
body: <p>I was developing an android application from Eclipse, connecting my Acer ICONIATAB A 500, with Android 3.0.1. And I did not have any problem.</p>
  
  <p>Now I'm trying to developing the same application on Acer ICONIATAB A 501, with Android 3.2
  and my ADB can't find the new device, while Windows can find it! I set in my tablet Debug USB option active, and I installed the appropriate driver on Windows.
  I installed even the last Google USB driver (Rev. 7)</p>
  
  <p>I tried to list the device find form adb with command </p>
  
  <pre><code> adb devices
  </code></pre>
  
  <p>from command line, but List of devices attached is empty.</p>
  
  <p>What can i do?</p>