Is there someway to control the length of time before the screen goes dark. I assume it does this to save the battery, but it can be very annoying, especially when placing a call. Mine blacks out almost immediately after connecting, and I am constantly hitting the Home button if I have to enter additional information or verify that I'm still connected. The screen also goes dark very quickly when I pause during an app. I thought maybe the Auto-Lock setting had something to do with it, but I've tried various times and it doesn't appear to have any effect. (I did a search for prior posts on this topic and didn't get any hits.) Appreciate any help.