My Feisty installation including evolution 2.10.1 also has this problem. All system defaults (including /etc/papersize) and all printers default to Letter. All applications (including OO.org aps, Firefox, T'Bird, acroread, and even command-line printing to lpr correctly print to letter size. Only evolution prints jobs insist on A4. This should be marked confirmed.
My Feisty installation including evolution 2.10.1 also has this problem. All system defaults (including /etc/papersize) and all printers default to Letter. All applications (including OO.org aps, Firefox, T'Bird, acroread, and even command-line printing to lpr correctly print to letter size. Only evolution prints jobs insist on A4. This should be marked confirmed.