First of all hi Guys , I have a serious problem in my PC . A few days ago I have installed "GTA San Andreas" While I was playing, I saw triangle thing on the screen. (I mean in the game). This thing happened again and again. So uninstalled it. And started to play "PES 2012". While I was playing, I saw these damn triangle things again in grandstands. Today I installed "Operation Flashpoint Red River". And these things happened again. I need help guys. I uploaded a picture and my system. :(