I am having problems installing SpywareBlaster 4.3. I have tried a "clean install" as well as installing it over the existing version 4.2. When I download and chose - Run - I keep getting the error message "The publisher cannot be verified. Are you sure you want to run this software?" I select run and get the message - "The setup files are corrupted. Please obtain a new copy of the program." I have tried downloading and saving to my desktop. When I run the software I get the message ""The setup files are corrupted. Please obtain a new copy of the program." What can I do to install this software?