Press the Alt key to display the menu bar, then go Tools->Options->Send, click the bottom "plain text settings" button, and check the checkbox to auto-indent quoted text.
Hope this helps,
Can anyone tell me how to put the automatic attributes (>>> in in Newsgroups when you reply to someone.
>Its a nice day. I think I will do some fishing and then come home and >paint the roof.
>Then I am going to have a cold one.