|Get rid of the stupid "VIRUS STOPPER" & replace it with something that works. Try this:|
Download, install, update, then run a full scan.
As for the problem with your screen, it sounds like your video driver became corrupted. Did you try changing the screen resolution? If it can't be changed, reinstall your video drivers. I can't tell you which ones to use because you didn't bother to list the make/model of your laptop.