I renewed my subscription for NOD in May. Because my old computer malfunctioned in July, I had to buy a new PC, this time with Windows 7, 64bit. I've just tried to download NOD on the newly arrived computer, but my username and password don't seem to be working. When I key them in and press enter, the pop up window asking for them reappears. Is 64 bit a problem? I purchased the Windows XP 32 bit version of the antivirus for a single computer. Or, is it the fact that I'm not allowed to transfer my subscription onto the new PC? Is there something I can do without buying a new product?