I have used Eudora trouble-free for ~10 years. However, migrating from XP to Win7, and there being minimal support for Eudora now, I decided on TBird as a replacement. The migration went reasonably well in that I got my Eudora mailboxes and my address book over. However I have been unable to manage migrating my filters so have had to create them all again. More importantly the migration has set up a high-level folder called Eudora Settings which contains Inbox and Deleted. It has also set up another high-level folder called Local Folders which also contains Inbox and Deleted. My Eudora Inbox did not migrate (some 1600 mails) to either Inbox but my first down-load from the server duplicated e-mails in both Inboxes. Below Local Folders I have a folder called Eudora in which there is a folder called Mail which contains my Eudora structure (folders and e-mails). How do I simplify the high-level structure?