AndroidManifest.xml

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
      package="com.cannonmatthews.sudoku2"
      android:versionCode="1"
      android:versionName="1.0">
    <application android:icon="@drawable/icon" android:label="@string/app_name" android:debuggable="true">
        <activity android:name=".Sudoku"
                  android:label="@string/app_name">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />
                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>

    <activity android:label="@string/about_title" android:name=".About" android:theme="@android:style/Theme.Dialog"></activity>
<activity android:name=".Prefs" android:label="@string/settings_title"></activity>
<activity android:label="@string/game_title" android:name=".Game"></activity>

</application>
    <uses-sdk android:minSdkVersion="7" />

</manifest>