I purchased COD Black Ops for my son on Blizzard.net about 3 months ago on his pc. It never fully loaded all the graphics etc. So we tried to get a refund from Blizzard, but they said he had to much play time in. So three months later and a new pc he wants to download again, but it's not showing as available to do so. My question is how do we download the game since I paid for it?!? Any help would be appreciated!