[ubuntu_studio] Keyboard not working during install

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http://ubuntuforums.org – I've been trying to set a recording studio up, and as a result I've decided to go Linux, Ubuntu Studio to be exact. i downloaded the .iso, burnt it to a DVD and when I boot with the disc in I get a language select screen, but no use of either the mouse or keyboard to actually select english. Don't have a clue what to do. Can anyone help? (Hardware)