title: Monkeyrunner.sleep() always Error sending press event
body: <p>i using android MonkeyRunner do some test</p>
  
  <p>every time run Monkeyruuner.sleep() will FAIL</p>
  
  <p>like this</p>
  
  <pre><code>from com.android.monkeyrunner import MonkeyRunner
  device = MonkeyRunner.waitForConnection()
  device.press('KEYCODE_ENTER', 'DOWN_AND_UP')
  MonkeyRunner.sleep(10)
  device.press('KEYCODE_ENTER', 'DOWN_AND_UP')
  </code></pre>
  
  <p>in the second </p>
  
  <pre><code>device.press('KEYCODE_ENTER', 'DOWN_AND_UP')
  </code></pre>
  
  <p>always fail</p>
  
  <pre><code>[main] [com.android.chimpchat.adb.AdbChimpDevice] Error sending press event: KEYCODE_ENTER DOWN_AND_UP
  </code></pre>
  
  <p>please help 
  thank
  '
  Thanks all reply!</p>
  
  <p>but even using time.sleep() or MonkeyDevice.DOWN_AND_UP always have wrong</p>
  
  <p>my scores code</p>
  
  <pre><code>from com.android.monkeyrunner import MonkeyRunner
  import time 
  device = MonkeyRunner.waitForConnection()
  device.press('KEYCODE_DPAD_RIGHT', device.DOWN)
  device.press('KEYCODE_DPAD_RIGHT', device.UP)
  time.sleep(2)
  device.press('KEYCODE_DPAD_RIGHT', device.DOWN)
  device.press('KEYCODE_DPAD_RIGHT', device.UP)
  time.sleep(2)
  device.press('KEYCODE_DPAD_RIGHT', device.DOWN)
  device.press('KEYCODE_DPAD_RIGHT', device.UP)
  time.sleep(2)
  </code></pre>
  
  <p>in the three time down , up always wrong</p>
  
  <p>log</p>
  
  <pre><code>120718 09:50:51.744:S [main] [com.android.chimpchat.adb.AdbChimpDevice] Error sending press event: KEYCODE_DPAD_RIGHT DOWN
  120718 09:50:51.744:S [main][com.android.chimpchat.adb.AdbChimpDevice]java.net.SocketException: Software caused connection abort: recv failed
  120718 09:50:51.744:S [main] [com.android.chimpchat.adb.AdbChimpDevice] at java.net.SocketInputStream.socketRead0(Native Method)
  120718 09:50:51.744:S [main] [com.android.chimpchat.adb.AdbChimpDevice] at java.net.SocketInputStream.read(Unknown Source)
  120718 09:50:51.744:S [main] [com.android.chimpchat.adb.AdbChimpDevice] at
  </code></pre>
  
  <p>THANKS!</p>