you see the game will run as long as d.s. and,or i.t. are not enabled or listed in the modsset.txt.corection,as long as no mods are listed or enabled.g.r. will run without them but once enabled it stops and i have to disable and delete them from modsset.txt to make it run once more.and this started before i messed with the modsset.txt.the game ran fine for about a week then stopped.my installation is good ,defragged several times.uninstalled and reinstalled twice now works for a day then stops again.my sytem is not the problem the problem is in the game.i have elimnated all possible causes and