a short time ago i changed my credo 40 to a credo 50 by trade-in. the live view is perfect!

BUT-1: i cannot get a live view/tethered picture with fire wire, the message is: "live view is not supported with this camera". with usb, live view is good but only up to 8 metres, with fire wire it was 10 m and more.
BUT-II: in live view in tethered mode, i cannot do a white/grey balance, the picture is often yellowish. the shot is good but the live view is incorrect.
as all this was great in cp8 pro with my credo 40 i think it is just a matter of a firmware update of my db, the present firmware is 1.01 ?