   XNA Resolutions
  What are good resolutions to use with XNA; specifically for a Windows and Xbox360 application.  I was reading on the XNA website that a good resolution to use with the 360 and most television sets is 1280x720.  I hear if it's on the internet that it has to be correct, right?I imagine this would be a decent resolution for Windows as well, but when trying to run my window in fullscreen mode, I have a black strip running up and down on the right side.  Is there a way to center the game on the screen or to scale it? I just started working in C#, XNA, and programming in general, so bear with me.   