Install CF10 failed on Mac OS X 10.8 Macbook 13" Retina

After clicking the CF10 installer, the installer window remains gray. Only the button "Next" is blue. But it is not possible to click the button. The install procedure stops at this point.

The installing of CF10 with the same DMG file on my iMac (also OS X 10.8) was successfull before.

My Macbook hat 8GB RAM an 5GB free disk space.

What can I try?

Jens