I am using the latest version of K-9 mail and am having some problems: 1. Changes I make in settings are not maintained. For example, when I change a 'poll' to 1 hour, when I exit and then look at the setting again to verify, it has reverted back to 10 minutes. The same thing happens with other setting changes. 2. Messages that I have read that are several days old seem to spontaneously appear as 'unread' several days later. Does anyone have ideas?