emulador se para cuando pongo imágenes

[marcosscalator]

aquí lo pongo, perdonad. pues eso, todas las imágenes las tengo en drawable-mdpi, y todas con las mismas características, pero en la primera activity se me ven y en las otras dos (mi app solo tiene 3) se para la app.

el logcat que pongo es de haber puesto una imagen como background en la segunda activity (pero este logcat me aparece igualmente ponga esa imagen o ponga un background en un Button de esa activity o lo que sea, ponga la imagen que ponga y sea donde sea, se para):


08-11 17:59:19.419: E/AndroidRuntime(1204): FATAL EXCEPTION: main
08-11 17:59:19.419: E/AndroidRuntime(1204): Process: com.pobe.freethefool, PID: 1204
08-11 17:59:19.419: E/AndroidRuntime(1204): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.pobe.freethefool/com.pobe.freethefool.SegundaPantalla}: android.view.InflateException: Binary XML file line #3: Error inflating class <unknown>
08-11 17:59:19.419: E/AndroidRuntime(1204): at android.app.ActivityThread.performLaunchActivity(A ctivityThread.java:2195)
08-11 17:59:19.419: E/AndroidRuntime(1204): at android.app.ActivityThread.handleLaunchActivity(Ac tivityThread.java:2245)
08-11 17:59:19.419: E/AndroidRuntime(1204): at android.app.ActivityThread.access$800(ActivityThre ad.java:135)
08-11 17:59:19.419: E/AndroidRuntime(1204): at android.app.ActivityThread$H.handleMessage(Activit yThread.java:1196)
08-11 17:59:19.419: E/AndroidRuntime(1204): at android.os.Handler.dispatchMessage(Handler.java:10 2)
08-11 17:59:19.419: E/AndroidRuntime(1204): at android.os.Looper.loop(Looper.java:136)
08-11 17:59:19.419: E/AndroidRuntime(1204): at android.app.ActivityThread.main(ActivityThread.jav a:5017)
08-11 17:59:19.419: E/AndroidRuntime(1204): at java.lang.reflect.Method.invokeNative(Native Method)
08-11 17:59:19.419: E/AndroidRuntime(1204): at java.lang.reflect.Method.invoke(Method.java:515)
08-11 17:59:19.419: E/AndroidRuntime(1204): at com.android.internal.os.ZygoteInit$MethodAndArgsCa ller.run(ZygoteInit.java:779)
08-11 17:59:19.419: E/AndroidRuntime(1204): at com.android.internal.os.ZygoteInit.main(ZygoteInit .java:595)
08-11 17:59:19.419: E/AndroidRuntime(1204): at dalvik.system.NativeStart.main(Native Method)
08-11 17:59:19.419: E/AndroidRuntime(1204): Caused by: android.view.InflateException: Binary XML file line #3: Error inflating class <unknown>
08-11 17:59:19.419: E/AndroidRuntime(1204): at android.view.LayoutInflater.createView(LayoutInfla ter.java:620)
08-11 17:59:19.419: E/AndroidRuntime(1204): at com.android.internal.policy.impl.PhoneLayoutInflat er.onCreateView(PhoneLayoutInflater.java:56)
08-11 17:59:19.419: E/AndroidRuntime(1204): at android.view.LayoutInflater.onCreateView(LayoutInf later.java:669)
08-11 17:59:19.419: E/AndroidRuntime(1204): at android.view.LayoutInflater.createViewFromTag(Layo utInflater.java:694)
08-11 17:59:19.419: E/AndroidRuntime(1204): at android.view.LayoutInflater.inflate(LayoutInflater .java:469)
08-11 17:59:19.419: E/AndroidRuntime(1204): at android.view.LayoutInflater.inflate(LayoutInflater .java:397)
08-11 17:59:19.419: E/AndroidRuntime(1204): at android.view.LayoutInflater.inflate(LayoutInflater .java:353)
08-11 17:59:19.419: E/AndroidRuntime(1204): at com.android.internal.policy.impl.PhoneWindow.setCo ntentView(PhoneWindow.java:290)
08-11 17:59:19.419: E/AndroidRuntime(1204): at android.app.Activity.setContentView(Activity.java: 1929)
08-11 17:59:19.419: E/AndroidRuntime(1204): at com.pobe.freethefool.SegundaPantalla.onCreate(Segu ndaPantalla.java:39)
08-11 17:59:19.419: E/AndroidRuntime(1204): at android.app.Activity.performCreate(Activity.java:5 231)
08-11 17:59:19.419: E/AndroidRuntime(1204): at android.app.Instrumentation.callActivityOnCreate(I nstrumentation.java:1087)
08-11 17:59:19.419: E/AndroidRuntime(1204): at android.app.ActivityThread.performLaunchActivity(A ctivityThread.java:2159)
08-11 17:59:19.419: E/AndroidRuntime(1204): ... 11 more
08-11 17:59:19.419: E/AndroidRuntime(1204): Caused by: java.lang.reflect.InvocationTargetException
08-11 17:59:19.419: E/AndroidRuntime(1204): at java.lang.reflect.Constructor.constructNative(Nati ve Method)
08-11 17:59:19.419: E/AndroidRuntime(1204): at java.lang.reflect.Constructor.newInstance(Construc tor.java:423)
08-11 17:59:19.419: E/AndroidRuntime(1204): at android.view.LayoutInflater.createView(LayoutInfla ter.java:594)
08-11 17:59:19.419: E/AndroidRuntime(1204): ... 23 more
08-11 17:59:19.419: E/AndroidRuntime(1204): Caused by: java.lang.OutOfMemoryError
08-11 17:59:19.419: E/AndroidRuntime(1204): at android.graphics.BitmapFactory.nativeDecodeAsset(N ative Method)
08-11 17:59:19.419: E/AndroidRuntime(1204): at android.graphics.BitmapFactory.decodeStream(Bitmap Factory.java:587)
08-11 17:59:19.419: E/AndroidRuntime(1204): at android.graphics.BitmapFactory.decodeResourceStrea m(BitmapFactory.java:422)
08-11 17:59:19.419: E/AndroidRuntime(1204): at android.graphics.drawable.Drawable.createFromResou rceStream(Drawable.java:840)
08-11 17:59:19.419: E/AndroidRuntime(1204): at android.content.res.Resources.loadDrawable(Resourc es.java:2110)
08-11 17:59:19.419: E/AndroidRuntime(1204): at android.content.res.TypedArray.getDrawable(TypedAr ray.java:602)
08-11 17:59:19.419: E/AndroidRuntime(1204): at android.view.View.<init>(View.java:3554)
08-11 17:59:19.419: E/AndroidRuntime(1204): at android.view.ViewGroup.<init>(ViewGroup.java:470)
08-11 17:59:19.419: E/AndroidRuntime(1204): at android.widget.LinearLayout.<init>(LinearLayout.ja va:176)
08-11 17:59:19.419: E/AndroidRuntime(1204): at android.widget.LinearLayout.<init>(LinearLayout.ja va:172)
08-11 17:59:19.419: E/AndroidRuntime(1204): ... 26 more


si no pongo imágenes las app corre poerfectamente sin incidencia alguna, pero pongo una solo imagen a partir de la primera activity y se para. este tema me tiene loco!

gracias por ayudar!