Quick addition to address a problem I had:
Console not auto signing-in to your profile after boot?
Enable it. Go the the Xbox Live blade on your dash (or press the Xbox Guide button on your controller) and press the A button to select your gamertag display field (with your picture, gamerscore, zone, etc.).
Go down to the sixth option "Enable/Disable Auto Sign-In" to change your setting.
A quick setting selection that sometimes gets overlooks.
This post has been edited by Xombe: Aug 26 2006, 02:32 AM