Quote Originally Posted by Siegrin View Post
yea a warning would be nice, like if your screen started flashing red or something if there is a mob 20 lvls higher than you, that would be awesome :]
Click on a mob, and there's a number right next to the mob's name indicating its level and an icon indicating whether it aggros. That should tell you everything you need to know without a flashing red screen.

Just have to pay attention to your surroundings.