Disable auto-filtering IMAP

I've got a couple IMAP accounts and for some reason, ever since I installed 
Fedora 10 (KMail 1.10.3, KDE 4.1.3) it's automatically filtering all the 
messages into local folders, and then when I POP that account (same 
account, accessible by either POP or IMAP) I get dupe messages, even though 
the messages are no longer showing up in my IMAP inbox.

Some info here -- when I installed F10, I kept my "home" directory and 
formatted just about everything else, and was pleasently surprised when my 
KMail came up just as if nothing had happened... asked me for my Kwallet 
password and then brought up all my accounts. Previously when I've done a 
fresh install, but saved my "home" folder, I had to set up KMail from 
scratch.

So, I'm glad that KMail settings were kept, but I find it annoying that the 
filters are auto-applied and the messages left on the server. How do I 1) 
Disable the auto-filtering of IMAP folders and/or 2) Permanently delete any 
messages that are auto-filtered? I'd rather disable the auto-filter on IMAP, 
but I can live with option #2.