I actually have ESS4 4.0.467. I am trying to install the newest one, but i get this error during installation: A network error occured while attempting to read from the file: C:\Windows\Installer\ess_nt32_enu.msi i had not uninstalled the previous version, just trying to install onto the old version, as it always worked. I have Win Vista 32 bit. What should i do? In addition i cannot turn on the Document Protection.