Unfortunately, I have no access at all to the server running Roundcube. Otherwise, I would have set it up differently, and/or upgraded. I only have client access as an email user. I was just wondering if there was another search Flag I might be missing, like "READ" or something, rather than the standard "SEEN". It's very strange, because when I look at the webmail server, it shows the mails as unread, but yet when we download them via IMAP, they get ignored (I must assume because of the "read" state). I make sure not to set the delete flag, nor any spam flags.
Here is a screenie of the page, but when I try to do a search(None,"UNSEEN"), I get zero messages.