Do anybody having a Netscape (AIM) Mail account experience the
defined message filters don't run automatically upon receiving new
mail? (happens for me with SeaMonkey 1.0 and 1.1)

While I've selected the Inbox and choose Tools -> Run Filters on
Folder they run o.k. I also have another IMAP Mail account (from
MyRealBox) but it runs its filters automatically o.k.