I just purchased this Monitor which I have to say is supurb, however the supplied Magic Tune software crashed my system. A little research threw up this click here
It seems that the Magic Tune prog tries to access the Internet after about a minute with an illegal IP adddress, Firewalls block this and in my case ZA Pro does not give any warnings, this crashes the prog and freezes the computer.
Entering ZA Program Control and giving Magic Tune full rights solved the problem for me.
Strange that this is apparently a well known problem and there is no mention that I could find on the Samsung sites.