I have TeXShop 3.26 running on a MacBook Pro with MacOS 10.9.1 and the TeXLive-2013 distribution.

Since a few days ago (after I updated to Mavericks) TeXShop does not automatically save my file when I typeset it (the red button on the upper left corner always has the dark spot).

I think this is very unusual, but I am not able to find out what the problem is.

Thanks!