I tried applying the fix here: http://us.battle.net/d3/en/forum/topic/4927184308?page=1#12
But after doing that, I can't get back into the installer. I just get a looping 'Updating setup files/Launching Blizzard Launcher'. Anybody know what to do? I'm on Windows 7 64bit, using the digital version of the game. For what it's worth, my ISP seems to block torrents, I had to download the tfil for the beta, but aside from that I could install that fine. I have all my firewalls turned off.