I also vote for Fevrin's suggestion of implementing an option to choose one's preferred behavior. There seem to be arguments for both (see http://brainstorm.ubuntu.com/item/8487 ), so why not let people choose? I, personally, like the original "grey out" behavior better, since this little asterisk needs to be looked for whereas a greyed out button is an "eye catcher". And, if someone needs to write over an existing document, one can use the "save as" button.
I also vote for Fevrin's suggestion of implementing an option to choose one's preferred behavior. There seem to be arguments for both (see http:// brainstorm. ubuntu. com/item/ 8487 ), so why not let people choose? I, personally, like the original "grey out" behavior better, since this little asterisk needs to be looked for whereas a greyed out button is an "eye catcher". And, if someone needs to write over an existing document, one can use the "save as" button.