I have a problem installing the MacTeX-2011-1.mpkg on my macbook (OS X 10.4.11). The first few steps (like Software License Agreement etc.) are working, but when it comes to the "proper" installation it fails:
The screen shot shows the problem: After choosing the volume to install onto, the installer asks whether I want to check some boxes (for example "Tex Live 2011" etc., (überspringen = engl. skip)). When I try to check the boxes nothing happens, they don't "take" the check. When I just press the button "installieren" (install) the box on the top appears. It says "You cannot continue. The software for the installation is missing". Does anyone know what to do?