[android-developers] Android emulator does not show any thing

when i run an android app the emulator starts but does not show
anything. there is a black screen on it.. and the following messages
are showed in the console section.
[2012-02-18 11:51:37 - LunchList] ------------------------------
[2012-02-18 11:51:37 - LunchList] Android Launch!
[2012-02-18 11:51:37 - LunchList] adb is running normally.
[2012-02-18 11:51:37 - LunchList] Performing apt.tutorial.LunchList
activity launch
[2012-02-18 11:51:37 - LunchList] Automatic Target Mode: launching new
emulator with compatible AVD 'secondAVD'
[2012-02-18 11:51:37 - LunchList] Launching a new emulator with
Virtual Device 'secondAVD'
[2012-02-18 11:51:49 - Emulator] Warning: No DNS servers found
[2012-02-18 11:51:54 - Emulator] emulator: WARNING: Unable to create
sensors port: Unknown error
[2012-02-18 11:51:54 - LunchList] New emulator found: emulator-5554
[2012-02-18 11:51:54 - LunchList] Waiting for HOME
('android.process.acore') to be launched...
[2012-02-18 11:53:56 - LunchList] emulator-5554 disconnected!
Cancelling 'apt.tutorial.LunchList activity launch'!

plz guide me

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