As PowerMail was not deleting old items in the trash, I did some rebuilding, which included reseting miscellaneous preferences. This turned on Simple Header Fields (PowerMail Menu>Preferences>Display>Simple Header Fields), all of which I had turned off.
Now if I turn off all Simple Header Fields, PowerMail quits if I try to open any HTML message. If I turn off the HTML reader in Preferences, then I can turn off all the Simple Header Fields, and the quitting problem goes away. But I want the HTML reader on. Toggling the HTML reader on and off does not help. How can I fix PowerMail so that I can turn off the Simple Header Fields and still see HTML messages without PowerMail quitting? Thanks. - Winston Weinmann