I have a TiBook G4, 1GHz, 512MB RAM I recall a year or so ago reading about some heat dissipation issues. Mine's running hot with the fan on all the time, regardless of whether it is plugged in or running on battery power. Is this a known issue that they have a fix for that would be covered under Applecare? I also have a couple of other issues - one being that the drive is making sporadic low to high to low pitched sounds occasionally, and I have what appears to be a stress fracture in the plastic that surrounds the metal on the front left top surface next to the screen bumper. Curious as to whether the stress fracture and heat issues are known issues that I can send the unit in for and if others have had similar experiences. -- Adam Boettiger boettiger at pobox.com (206) 888-6824 voicemail/fax