I have just logged on and am getting a 'format error; in the FMC when attempting to apply v-speeds - also managed speed mode seems to have disappeared - is there a new setting I have missed?
First insert your departure rwy and SID (F-PLN page)
Then insert your takeoff flaps (normaly 1).
Then click on the specific line select keys for the V speeds and click them again to insert the shown number.
Check out this for more infos on how to fill out the MCDU correctly:
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It was my flap setting Doh!