I'm a bit stumped.
Are they IMAP accounts? It's like it hasn't taken into account you want your emails sent to the trash. Can you manually drag emails to the trash, and have them move properly (bypassing the delete or undelete button)?
They are all imap as I understand it. One is the account I have through my ISP. This account can be accessed anywhere via web, but I also have my computer set to erase the mails from the server once they've been downloaded to my computer. The second is a .mac account, and the third is gmail.
I've tried dragging them to the trash, but nope. The weird part is when they just get grayed-out in the inbox, and the "delete" button magically becomes an "undelete" button.
The only other think I can think of, is that the Ctrl L command goes between showing some of them as trash, or alternately as flagged. I tried marking them as not junk, then deleting, but that didn't help either.
This, combined with the problems I've been having with Word closing mysteriously on one account (you helped me with this in another thread), make me wonder if it isn't worth it just to wipe the whole disc and start over with a clean install, sigh. A major hassle, but mebbe worth it. It's a 2004 PB G4 17", but it's still working well, and I want to keep it in good shape.