After a OSX system reinstallation from scratch, I try to reinstall also MacTex.
The new installation stops at the initial stage of package verification with the error:
WindowServer: [cps/setfront] Failed setting the front application to Installer, psn 0x0-0x246246, securitySessionID=0x186a4, err=-13066
I already repaired the disk permissions, but it doesn't seem to work.
Thanks for any help.