on 03/05/07 06:21, Simon Chapman at sc at pr100.com wrote: > My 15in 1Ghz TiBook spends most of its life with the lid closed, driving an > external Cinema Display. Is this a safe operating mode for extended periods > or will it generate more heat this way? The case doesn't feel hot at all to > the touch. TIA. > I'd say it's no problem since not much heat comes off the top. Also, it prevents you from accidentally dropping a pair of scissors, book or stapler on the keyboard or screen.