this is probably quite a lame question, but I have searched extensively.
I've bought a used Pi that came with a SD card with the Raspbian distro its all working fine.
I've downloaded various versions of the Piplay distro and am writing the image to a new Sandisk 8Gb SD using ImageWriter
I cannot get my Pi to boot with it. Several times, my Windows7 laptop will tell me that the card is corrupt, or, today I made a card and appears to have files on it, but the screen attached to my Pi just stays dark.