Hello everybody. I'm not a gamer but started to play some Team Fortress 2 and sometimes I play Age of Empires 3 on the mac. I have an iMac (2010) 2.93 i7 8GB RAM 1TB. As soon as i get in the game a sea of flickering lines on all possible angles start to show up... I just called apple and told them the whole history but they said as far apple is concerned that should be a problem for the software companies from the games because that problem doesn't happen in any non-game environment. I have tested both AOE 3 and TF2 and the problem is the same, have also tried to low all settings and it didn't change... You can have an idea of what is happening with the pics. I couldn't I have tried all apple troubleshooting and nothing has changed... Anyone??