Occasionally my CD Macbook's backlight won't work after waking up from sleep. It happened once a few days ago: I took it out, the backlight didn't work after adjusting it via F1-F2, so I restarted and it worked again. Today, after an exceptionally rough landing on my desk (in a bag, of course), I took it out to make sure there was no damage. Again, the backlight didn't turn on. I restarted, but put it in my bag to deal with after class. When I reached in an hour later, the bag was roughly the temperature of the sun and the screen was blank. Anyway, it worked after another restart. Anyone else have this happening? Is it a result of a firmware update, or perhaps beause I'm treating it too roughly?