help my game will not work titan quest

[squeakies3]

Hi I recently played titan quest got to boetia and had to quit for the night. I tried to play today and all i get is a bunch of lines when i go to play the cd. Does anyone know what has happened or has anyone had this problem with the game? Please desperate do not understand never had this problem with other games and they all work as I tried a different game, that I have installed already and it seems to work so I know that is not the problem.