As a previous MBP owner and a PC owner I am confused. The x3100 videocard should handle Warcraft 3 fine correct? However, when playing DOTA ( map settings) it lags- 2-10 FPS after 10minute into game play. I set my fan at 6200rpm , temp hovers between 70-90 My setting in game: LOW settings on all options 640 by 480 resolution ( the lowest!) I like my MBA a lot but should playing a 5 year old really "suck" this bad?