Hi all, I've been using COMODO Firewall for a while now and I really like it, so I got their BETA version of their Registry Cleaner. After letting it run, it found thousands of problems (something that my tried-and-true CCleaner did not!) and, of course, I checked the button to remove all the errors. Now when I go to boot up the computer, I get a pop-up window that says the Windows Document Viewer is preparing for installation. I try to click Cancel, but it does nothing. I cannot click on the red X to close the window, either. I have to press Ctl+Alt+Del and go into the Task Manager to manually end the task. The next time I tried to boot-up, another window for the Tray App came up saying it was trying to install. Can someone help with this? Did COMODO remove too much? I didn't change any of the original settings and it is compatible with my XP Pro/SP2 system. How do I get rid of these things? Thanks in advance!