Google Nexus One: How to Force Stop a Frozen or Hung Application

If your Nexus One behaves strangely and you think that an application on it is frozen or not responding, you can close the application easily.

1. Go to the Nexus One’s Main screen

2. Select the Menu key.

3. Select Settings.

4. Select Applications.

5. Select Manage applications.

6. Select the problematic application.

7. Select Force stop.