Burn-in will only occur if this is all you ever use the monitor for. If you mix up your content, ensuring that you get some that fills the entire screen, it shouldn't be an issue.
If play games on it hours on end, day after day and don't display anything else, you'll probably notice some burn-in after a few months.
-Lance
If play games on it hours on end, day after day and don't display anything else, you'll probably notice some burn-in after a few months.
-Lance