This is a follow up. I guess I have some information that can help you find the problem.
I made ALL my posts PRIVATE. Then I tried to validate my feed again. This time, the problem was with the site description which is in Greek UTF8. Here is what happens:
This is the line of text I enter:
Η απλότητα δεν είναι προνόμιο των ηλιθίων
And this is what happens to this line on RSS and in the PodPress configuration page:
Η α&p1;λότητα δεν είναι &p1;ρονόμιο των ηλιθίων
One of the letters converts automatically to &p1;
This happens with some letters and with some others it does not. This is the reason that the feed brakes. If I do not use Greek language there is no problem.
I remind you that I use UTF-8
Can you help me out?