so i installed halo and everything works up till the main menu. when it gets there it cracks up and shifts resolutions.
Change the resolution?
It cracks up? Try what 343 said or maybe it is ur graphics card. Install the latest drivers for it.
Could be your monitor
That is the smae exact thing that happened 2 me and ive searched evrwhere for a solution
What graphics card and RAM do you both have? and what is the normal resolution of your monitor screens?