shaircast - is there any difference to using "Go to URL" or "Open URL in new window" ? The reason I ask is when I am testing my APK on smartphone and tablet (this is before published to Google Play), if I click on my RATE button, it will open up a window that says "We're sorry, the requested URL was not found on this server." That is normal since I haven't published it yet, HOWEVER, I am not able to leave this screen except with the device's home button. The device's back button does not work and my app is stuck on this screen forever. Even if I go back to tablet home screen and click the app icon, it still goes to the "URL not found screen" instead of starting at my app's title screen.