I got the very same thing. . Blaclk screen after pressing print screen, I have got this ever on my last 2 Laptops.
What I do to take the screen shot its to Windowize the game ( Alt + Enter ), then I take the picture of the desktop and paste it to paint. Then cut the part i want then create a new paint and paste, adjust the size and save the jpg file.
Hope this helps.
Cheers