I am not sure, but it appears that something is causing comments posted to privately-published blog entries to be hidden. They are listed in the dashboard under comments, but the webpage, shown only to logged-in users, doesn't show them (it does show a 'leave a reply' form though). Of course, only logged-in users should see the comments for privately published pages.
I'm using version Atahualpa 3.5.3 with the patches.
Any hints / help would be greatly appreciated.