If you believe an update has caused some sort of issue to your console, please follow the
instructions here (Miss Ermine's post) to uninstall the update and then when you re-connect to Xbox LIVE you'll be prompted to download it again.
Unfortunately, there's no way to remove yourself or opt out of the program once you've registered for it. If you're having some sort of issue with the beta update in general please make a new post in the dashboard beta forums
If you don't have access to that section of the forums just yet and you're seeing "GROUPNOTFOUND" then please be patient as a forum support agent will need to look into your participation in the beta,
once they have confirmed that they will add you to that section of the forums.
Please Note: You can only gain access to the beta forums if you have the "beta" channel on your Xbox 360 Dashboard. Only the person who ran the beta registration application will have access to the forums using their gamertag. No other gamertags
will be able to access the forums. Since beta registration is now closed, it's not possible to get another console into the beta so you'd need to wait until the beta is released to the public later this year to make any purchases, or visit anyone's
house you know of that also has this beta update to make purchases on their console for the time being.
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