I can find in practially no application the menu bar on top. Where has this disappeared and how can I restore it? This makes efficient working absolutely impossible. In many programs the menu is abslutely vital.

Please help! Thank you in advance

which of your 2 listed installs?

in another recent post you state you up'ed to 12.10, so this issue appeared after the upgrade?

if after the upgrade are you now running KDE 4.10?

It seems all to be very complicated.

The old version 12.04 seems to have upgraded to 12.10 and works with very few exception now well. Here I am missing the menu bars. However, I have found it, but can not move this menue into each application at its proper place. The menue now hides behind a tiny, tiny black box on the very top of the screen, hardly noticable and difficult to pinpoint with the mouse. This is truly not what I expect in a good, easy, quick Desktop for Desktops. For little handheld machines that my be the big hit, but I have hardly a mobile and intend not to do any mobile computing ever. So, I do hope to get help how to install the menue bar in all my applications back.

The first version 12.10 has some faults, due to a mishandling of mine. However, I decided to wait and replace it with Kubuntu 13.04. I can use it as an emergeny program if the main one has problems.

can you post a pic

sounds like you're using the Oxygen widget style and the menu bar style is not quite right (new in 4.10)
try changing your app widget style: systemsettings -> application appearance -> fine tune -> menu bar -> menu bar style -> in application

Thanks a lot, this did it. I am happy again.