I've tried installing the latest version of Acronis (9646) on a clean install of Vista 32/64 bit. It seems to install fine but the installation just stops with no error message. I have to open task manager, and end the installation. The weird part is after stopping the installation and restarting the computer, it works fine. The only way to successfully install Acronis 2009 is to install it after I install Norton Internet Security 2009. Any insight would be helpful. Thank you.