Not showing Main Activity after Splash screen

I under stand the thousand of people saying "don't use a splash," I get it, but the app is not that big, I just want to know what I am doing wrong I think it is something with my Manifest but after my splash shows and when its supposed to go to main page, I get error "Sorry! The Application Grifball (process com.grifball.info) has stopped unexpectedly. Please try again.

Here is my Manifest.

package="com.grifball.info"
android:versionCode="1"
android:versionName="1.0" >

    android:minSdkVersion="8"
    android:targetSdkVersion="8" />

    android:allowBackup="true"
    android:icon="@drawable/ic_launcher"
    android:label="@string/app_name"
    android:theme="@style/AppTheme" >

     
                    
            

            
        
           
            android:name="MainActivity"
        android:label="@string/app_name" >
        
            

            
        
    

Here is my Splash's Java

package com.grifball.info;

import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;

public class Splash extends Activity{

@Override
protected void onCreate(Bundle startup) {
    // TODO Auto-generated method stub
    super.onCreate(startup);
    setContentView(R.layout.splash);

    Thread timer = new Thread(){

        public void run(){

            try{
                sleep(5000);
            }catch(InterruptedException e){
                e.printStackTrace();
            }finally{
                Intent openMainActivity = new Intent("com.grifball.info.MAINACTIVITY");
                startActivity(openMainActivity);
            }
        }

    };
    timer.start();
}

}

Here is the XML

    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical" 
    android:background="@drawable/splashbg">

.

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