I've run the installer twice now and come back to an error window that says the following:

Error: The file "C:\Documents and Settings\User\My Documents\Diablo III\Diablo-III-8370-enUS-Installer\Installer Tome 3.MPQE" could not be opened, because an error 108 occured. If this problem persists please contact Blizzard Technical Support. (OpenArchive::Execute)

Both times I let the installer go to completion and didn't stop it. Any ideas on how to fix it?

Thanks guys