Problem with KDE shortcuts

[Guest]

After upgrading my kubuntu from 11.04 to 11.10, many KDE shortcuts such as "ctlr+c", "ctlr+v", "crtl+x" etc. don't work in KDE applications(okular, rekonq, kmail, Dolphin, etc.).
How can I fix it?
Thanks.

[Guest]

These are so-called global shortcuts and can be edited via the system manager.

But they should not have disappeared and the upgrade might have caused some damage to the ~/.kde settings.
When you can't get them to work through the System Settings menu you could try making a new ~/.kde by renaming the existing one to something like ~/. kde-old.
A restart of the desktop should create the new ~/.kde.

I tried to restore them to default and I see the correct shorcuts in System Settings but they don't work.
If I create a new setting folder, I will miss my old data and settings for kmail, basket, korganizer, plasma, etc.
There is not any better solution?!