I've just updated to 3.5.
Everything looked pretty good until I tried to save "Blog" as my "Posts page"
My reading settings won't save. It will let me save the "front page" but not let me set anything for the "Posts page". When I hit save it says, "settings saved" but nothing has actually the "posts page" has reverted back to "-select-"
I've deactivated all plugins but still have the same problem.
Your help would be appreciated