Currently the livecd is based on isolinux 1.75, which hangs on certain Toshiba laptops (including mine :) ) - making installation of Gentoo Linux impossible. The website for isolinux stats that 1.76 (which is the latest) has fixes for this problem..
Try the "2002122100" livecd from http://www.gentoo.org/dyn/experimental/livecd/. It uses isolinux 2.0. Post results (good/bad) here. Thanks for the bug report :)
No reply, but should be fixed so closing bug.