attempted to download some wallpaperfrom a site it downloadedbut then I got a error message saying;ACROBAT COULD NOT OPENKNIGHT(1).ZIPBECAUSE IT IS EITHER NOT A SUPPORTED FILE TYPE OR BECAUSE THE FILE HAS BEEN CORRUPTED.could you tell me what this means and how can I correct this so I can open the download up.also I tried a different image and the same error message appeared.
THANKS
THANKS