I'm using zimbra web client from my isp (free => zimbra.free.fr); I'am facing a major problem with editing calendar entries.

In the calendar i can create an entry but when editing it with details the "save" button is inoperant; if i try to quit or to go to mail section i get "saving changes? Yes/No" chosing yes is inneffective, I can only choose no to get out.

It is not related to my browser/os or account as i tried with many (linux/mac/win with safari/ff/ie; different accounts)

I already tried to getinformation about this problem from my isp (free) without success, many users from zimbra.free.fr are reporting the problem but "free" is doing nothing