By default, they all sleep when you close the lid. There is a hack that I saw a while back that overrides this behaviour. My understanding is that Apple intended the lid to be open for head dissipation while it is in use. I have trouble with mine (500MHz G4 1GB) overheating even when it is open. If you have auxiliary cooling like one of those lap-desks with the fans, that might be enough. Do you have a temperature monitor program? Mine doesn't make the temp sensors available but I could at least monitor the SMART status of the drive. Its temp probe gave me a rough idea of the internal temp. I use http://www.bresink.com/osx/TemperatureMonitor.html Perhaps a better solution would be to set your external monitor up just above, or next to, the display on the TiBook while open, then use both monitors at once. On Apr 7, 2007, at 7:38 AM, Ken Johnson wrote: > I have purchased a Bookendz dock for my 1GHz Titanium G4. Now, > when I'm at home, I want to be able to use it as a desktop - > external keyboard, mouse, monitor, etc. with the lid closed. I'll > connect the external monitor via DVI. My question is - will it > operate that way, if so, will the built-in monitor be "off"? > > Thanks - Ken > _______________________________________________ > Titanium mailing list > Titanium at listserver.themacintoshguy.com > http://listserver.themacintoshguy.com/mailman/listinfo/titanium > > Listmom is trying to clean out his closets! Vintage Mac and random > stuff: > http://search.ebay.com/_W0QQsassZmacguy1984 >