Ok, the problem is fixed, it seems tht
<style name="AppBaseTheme" parent="android:style/Theme.Light.NoTitleBar">
<!--
Theme customizations available in newer API levels can go in
res/values-vXX/styles.xml, while customizations related to
backward-compatibility can go here.
-->
</style>
<!-- Application theme. -->
<style name="AppTheme" parent="AppBaseTheme">
<!-- All customizations that are NOT specific to a particular API-level can go here. -->
<!-- <item name="android:background">@drawable/main_bg</item> -->
<!-- <item name="android:windowBackground">@drawable/main_bg</item> -->
<item name="android:windowNoTitle">true</item>
<item name="android:windowFullscreen">false</item>
</style>
Settings Theme on Application was causing this problem, i have removed this and now its working ok !! strange