Hello to all.I have planned a flight as usual (have lot of experience with FMC) and inserted all the necessary datas. Activated LNAV and VNAV on the runway and took of. After engaging the AP LNAV worked fine, but no throttle control and no climb control - that means NO VNAV! So I went into overspeed and the plane began to sink instead of climbing, and all with engaged AP, LNAV, VNAV.Then first tried to fly manually and engaged AP, LNAV and VNAV one more time. But no speed limitation 250/10000 was accepted and no VNAV function at all.So I had to take the plane manually for a back track to the airport for an immediate landing...uh what a pleasure for the passengers..!Any idea to solve this? What am I doing wrong? The patch is V1.1.Thanks for every help, and - thanks for the new and very fine flight dynamics!Boris, Switzerland