USB keyboard, how can I change country?

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http://androidforums.com – I have the ATV1200 :) (great bit of kit), but the USB keyboard is set to US and I dont know how to change. All of the devices country and input settings are set to UK, but I think this just applies to the use of the soft keyboard. Is it possible to change the country code for the USB keyboard? Im also wondering if this would affect any hardware based keyboard, such as wifi ones? (General)