title: Android on virtualBox gets stuck after idle
body: <p>I am running a VirtualBox with android-x86 (as a replacement for the ultra-slow AVD emulator).
  Its a Linux VirtualBox running android 4.0, on a Windows 7 Host.
  The machine boots up and everything works fine, but if i leave the machine idle for less than 5 min, i can't perform any action - all the menus,buttons,etc are unresponsive although the android clock is changing, and i can go to command (alt + F1) and back to gui (alt + F7).
  Has anyone came across this phenomenon or has an idea what goes wrong here?</p>