I had previously been using v2.x without any problems whatsoever, so I decided to install Spywareblaster 3.1. "O boy" what a nightmare I have been having this day. I installed, updated it and had no problems. I was smiling ... the sun was shining and all was peaceful. I then proceeded to run my regular registry cleanup using Microsoft's Regclean. I had not installed any other programs since the last cleanup and Spywareblaster was the only program I did install prior to running the cleanup. After the cleanup , I got a huge list of invalid registry entries, which I am assuming, came from Spywareblaster. I then said to myself ... "Wait I don't want to delete this, I want these items in my registry", so I right-clicked the registry file to restore the changes to the registry. Thats when all HELL broke loose. I got a wonderful colored 5mm bar at the top of the screen and the computer froze. So I was just shaking my head. "O well", I said to myself as I pressed the reset button, "Crap happens." The PC restarts and I get an error message saying my registry has been OWNED. I frown. Scanreg starts up and fixes all. The machine restarts. I uninstall Spywareblaster. I restart. An error from the firewall now. I restart, same error again. I uninstall the firewall. Restart the machine. Antivirus error. I restart ... same error. I uninstall the antivirus, restart the machine. Restarts fine now. I breathe a sigh of relief. I now decided to change some PC settings ... go to dial-up networking change a few settings and restart the machine. Scanreg pops up again with registry error. Backups up old version I restart the machine. Entries which I previously uninstalled from the system, suddenly pop-up and I get all sorts of VXD errors. Dial-up networking settings resort to old settings as well as other settings I had changed ... I go do them all over again. Restart the machine. Registry error again. If I had a gun right then, my computer would be smoking right now. I uninstall and reinstall all the applications that were giving me errors. All seems fine and I try to connect to the internet. LINE IS BUSY error. Line is not busy ... I hate you PC ... I hate you. Restart PC. Try again. Finally I get connect to the net. Let me say this when I unistalled Spywareblaster I did not uncheck protection . Is that where my problems started ... I am at a loss. I have not had any blue screens, viruses and what not for months , maybe years. Today I have had at least 10 startup registry errors, not to mention program errors and I am extremely worried about installing Spywareblaster again. I have done a virus scan and no problems there. I am using win98SE. I am considering never to use a registry cleaner again ... that or Spywareblaster. Any help/suggestions would be appreciated.