It's sitting up, out of the beverage spill zone, and I am using a keyboard/video/monitor switch with it, so this is a great suggestion for me. I even found a place for that old aluminium heat sink. I look forward to my next session with iDVD/iMovie to see how it does. My num lock light/screw wasn't tightened either. :-) John On 12/19/04 8:52 PM, "Bill Planey" <mac.info at sbcglobal.net> wrote: > A certified Apple technician friend of mine suggested the additional step of > opening up the keyboard and leaving it open while working. This works for > me because I use an external keyboard most of the time. It is unsightly, > and you should not do it if you are clumsy in a drink-spilling way, and you > need to be careful of the fragile ribbon cable attached to the keyboard... > But when I do this the fan NEVER comes on no matter what is being processed, > no matter how warm the ambient room temperature is. I am sure that this > precautionary step is one of the reasons I've never had a problem with my > TiBook. > > It only takes a second to snap it open or closed (I don't bother tightening > the clear screw that has the Num Lock light in it anymore).