I have two questions about the Samsung Fascinate.  First, to take a screen shot do I have to download an app to do that?  Or does the phone have a feature to do this and if so how does that work?

Second, I receive an initial ring notification when I receive a text message.  However, the phone does not sending me any additional notifications letting me know that I have an unread text message.  I have to just keep checking the phone to see if I have a message.  How can I get it to keep sending me an interval notification that I have an unread message?