Never apply last-minute-changes. I noticed an update for my eeePC based Intel card in Jaunty, minutes before I would take it with me on a one month journey. Great, I thought, a performance update. The update, however, removed the Intel card definition from HAL, thereby forcing my Intel video card to a 800x600 VGA display. Not fun if you're one month in the bush, where internet is something SF-alike.
It took me up to Cape Town, where I enjoyed the marvels again of broadband, and got my 1024x768 resolution again.