Plz computer has a problem my recent documents is empty i have opened more then 20 files .?

i have also ticked the option in the start menu properties the box saying "List my most recently opened documents",but it has no effect on the recent documents ,plz i request u 2 give a solution but plz i dont want to edit registry of my pc.
i will give 10 pts to best solution.
3 answers 3