Hey,
Don't really like the 'preview' window in Mail (always turned it off in Outlook Express and Entourage, preferring to double-click, open a window to read my mail), so I've made it as small as possible.
However, when I double-click an email in Mail, there are no 'next email', 'previous email' buttons in the toolbar, nor an option to add these buttons.
So...you have to close down the window, go back to Mail, double-click on another.
Hasn't anyone noticed this before?
Chris.