Issue with android buttons layout

I Guess something is wrong with the layout, earlier I had only three buttons, now I added one more button and now layout is behaving weird. Any idea? How can i have proper rendering of buttons and text in it

Image :

layout.xml

<TableLayout
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:layout_centerInParent="true"
    android:gravity="bottom"
     >

    <TableRow
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:background="#092435"
        android:gravity="center_horizontal" >

        <Button
            android:id="@+id/home"
            android:layout_width="0dp"
            android:layout_weight="1"
            android:background="#092435"
            android:gravity="center"
            android:padding="15dip"
            android:text="Activity"
            android:textColor="#ffffff" />

        <View
            android:layout_width="1dp"
            android:layout_height="match_parent"
            android:layout_marginTop="6dip"
            android:layout_marginBottom="6dip"
            android:background="#85929B" />

        <Button
            android:id="@+id/status"
            android:layout_width="0dp"
            android:layout_weight="1"
            android:background="#092435"
            android:gravity="center"
            android:padding="15dip"
            android:text="Support"
            android:textColor="#ffffff" />

         <View
            android:layout_width="1dp"
            android:layout_height="match_parent"
            android:layout_marginTop="6dip"
            android:layout_marginBottom="6dip"
            android:background="#85929B"  />

        <Button
            android:id="@+id/support"
            android:layout_width="0dp"
            android:layout_weight="1"
            android:background="#092435"
            android:gravity="center"
            android:padding="15dip"
            android:text="Messages"
            android:textColor="#ffffff" />

        <View
            android:layout_width="1dp"
            android:layout_height="match_parent"
            android:layout_marginTop="6dip"
            android:layout_marginBottom="6dip"
            android:background="#85929B"/>

        <Button
            android:id="@+id/survey"
            android:layout_width="0dp"
            android:layout_weight="1"
            android:background="#092435"
            android:gravity="center"
            android:padding="15dip"
            android:text="TV Survey"
            android:textColor="#ffffff" />
    </TableRow>
 </TableLayout>