I was able to install and run the d3 beta just fine. I have since uninstalled the d3 beta......... I went into my account on battle.net and pre-downloaded the full version of d3.... however when it completed and I ran the setup I get an error:
C:\Users\Owner\Diablo-III-8370-enUS-Installer\Diablo III Setup.exe is not a valid Win32 application
Someone please help!!!!!!