Thank you very, VERY, much! It worked.
Since you are so kind, I ask you also: The sound clips in my timeline have
become all green and I am not able to turn on the small dots, which allow to
change the sound level within every clip. Any idea how I can return to normal?
You may have dropped the sequence on the "New Item button"?
It sounds like you nested your sequence into another sequence. If so, doubleclick on the green audio clip and the original sequence should appear.
One more question:
I have started a new project, and when I click on the "Insert(,)" and
"Overwrite(.)" icons, nothing happens, though it is possible to drag the clip
directly to the time line. Same with the transitions, I can drag them, but "d"
does not work.
How can I reactivate those keys?