Has anybody who used Anit-Spam Guard 4.0 had any problems with it? I have. After I installed it my PC was caught in an endless loop of trying to bootup.....right before I enter my user id and password. I fix the problem I had to boot into "Safe Mode" without network support then uninstall the program. To make things worse it did something to my external backup drive where I had to reformat it and do a new backup. I am using Win7 Home Premium with Norton Security Suite.