Many thks for prompt reply. Much appreciated. But plse let me clarify the problem, as I might not have been clear enough so far.
Here goes:-
1. I insert card in the reader and the computer monitor shows all photos I have just taken.
2. I copy the photos to MY PICTURES folder.
3. I remove the card from the reader and re-insert it in the camera.
4. I delete all the photos on the camera and the LED on the camera shows "NO IMAGE".
5. I take a few more photos and re-insert the card in the reader.
6. The computer monitor shows not only the few photos I have just taken but all the previous ones, that is, the ones I had deleted, as well.
7. If I get you right, is this because the photos can be deleted on the camera but not on the card itself ?
Thank you again.
GUZEPPI, aged 74, oldage pensioner, former civil servant.