"Anda Setuju?" comes up as a Javascript pop-up box in front of a
garish green website. This tells you your computer is infested with
the Brontok computer worm. If this happens to you, select ctrl +
alt + delete to bring up Task Manager, and then End Task. Then get
back into your internet and google ways to remove Brontok from your
system. Judging by the poor spelling on the Brontok webpage, "Anda
Setuju?" probably means "And Setup?", so don't click OK on the
pop-up box.