Save as button doesn't show an dialog to save a mail to a file. 1) Select a mail 2) Open Flaps menu 3) Select E-Mail submenu 4) Scroll down and select Save As ... Version: 4:4.5~20100910.1175630-1maemo6.1174786
Works fine now.
Confirming fix for version 4:4.5~20100920.1177660-1maemo1.1177547 .