BLACK TEAR DOWN MY SCREEN just bought the game

yeah ive tried to look threw threds to fix this but the only answer i got was HDD Format and not knowing to much about pc's i fought this was to wipe ur pc clean and i do not want to do that but i want to play TMP 08 .I have the main update  it just has the black tear down the screen and says UR PLAYING IT IN 800 X 600 resolution switch to 1024 x 768 which it always is on