Resetting Eudora settings without erasing vital mail server settings

Windows:
Hold down ctrl and shift on the keyboard while going to Tools → Options. A dialog box will pop up asking you if you would like to reset your Eudora settings. This should reset all Eudora settings other than your mail server account options.

Mac:
To reset your settings from within Eudora hold down the following modifier keys: Command + Option + Shift + Control. With your mouse select Special → Settings. A dialogue box should appear asking if you want to reset all but the most vital Eudora mail settings.