I've had the Thunderbolt display for around a day. When I initially plugged it in, everything was working fine and as expected, at night, I put it to sleep and that was that. In the morning, I woke the MacBook, and nothing from the TB display. I updated to the latest version of Lion, and tried to download the TB firmware update, when I attempted to install it, the computer told me that I did not need to. Fine, I thought. Plugged it back in, same again, nothing. Has this display just died after less than 24 hours? EDIT: I should add that the charging cable from the back of the monitor is currently working - just nothing else.