Search folder criteria

[Tom]

I'm trying to set-up a search folder that contains unread mail that is in
any folder except for two specific folders. The "Unread" criterion works
fine, but the other two "Not in Folder A" and "Not in Folder B" seem to
work like the two criteria are "OR"-ed rather than "AND"-ed. Since no mail
is in both folders simultaneously, it allows all unread mail through. If I
remove "Not in Folder B" it works as expected, only allowing through mail
that is both unread and not in folder A.

Any suggestions?


Thanks,

Tom