I am going to down load and install Ewido instaed of using the on line scanner. I have a coupke questions about it before I do though. Is there only the one version available from the Ewido site? Is there not a free, trial, and paid versions? I read that during install that you have the choice to install or not to install the background guard. If I choose not to install and only use Ewido as a on demand scanner can I still update the definitions from within Ewido or do I have to do the manual install of definitions from the Ewido site. I know automatic updates won't work without the background guard. Also is there an option to install the background gaurd after if I decide I want it or do I have to do a uninstall and reinstall of the whole program?