Adam, I think you issue with pause/next/prev buttons is something different. Because everyone in this thread has problem with brightness and noone reported problem with these keys. Actually, I have "doblue-brightness" issue on my Dell Inspiron 1520 (with 12.04 beta 2!! will it ever be fixed?!) and pause/prev/next buttons work just fine.
Adam, I think you issue with pause/next/prev buttons is something different. Because everyone in this thread has problem with brightness and noone reported problem with these keys. Actually, I have "doblue-brightness" issue on my Dell Inspiron 1520 (with 12.04 beta 2!! will it ever be fixed?!) and pause/prev/next buttons work just fine.