Make sure there are no videos in the folder you are trying to import from.
Also, make sure that the destination panel on the right hand side is both present and expanded.
There are no videos at all
Destination panel is fully filled in
All filters in library mode are off
No images show in import screen
The only option at bottom right is to cancel and import button is greyed out
The source (i.e. the camera) is shown at top left but no preview images available
Since you have marked your own answer as the correct answer, you may not get any more support in this thread, people tend to not read threads that are marked correct.
OOps - my mistake - thanks - hope someone can sort out my original question as easily :-)
Would suggest you to select Copy option is Import Window > expand the destination panel > make sure that the destination is specified correctly and then, check if you are able to see the images.