Pressing the "PrintScrn" will not happen anything, but the mouse cursor may blink once. You'll not see the clipboard but it would be captured to the Ram memory, i.e. the screen is captured virtually which isn't visible to you, you'll only be able to save the captured screenshots with a photo editing program (eg. Paint, Photoshop) or text editor like Microsoft word, etc...
After pressing the "PrintScrn", open the "Paint" and paste, i.e. right click anywhere on a blank document and "Paste". You can also do "Paste" on microsoft word blank document or etc... If you wish to save the screen shot, you have to save the file as Jpeg or Gif or Bitmap etc...
Here's a tutorial for you..
(Click Here)
And here's more information about Print Screen Key
(Click Here)
If you need further help, let me know.
Good luck.
Thanks for using
FixYa.