recently my computer has become very slow to delete my read messages in Outlook Express. All of my messages come into my Inbox. After I have read them I hit the Delete button and they go to my Deleted Messages folder. I do refer back to them on occasion and want to keep them. I have about 10,000 messages there. Lately whenever I delete a newly read message it takes about 15 seconds to actually move to the Delete folder. Makes reading my mail painfully slow. Any ideas?