Dalarina

HI, Im getting a colored line running across my screen using the S.L. Viewer and a AMD R9 380 Graphic card. Its a brand new card and this only happens on Second Life. Any help would be greatly apreciated! After reading your answsers is it better to let the Graphics card auto install a new driver or is it better for me to go to the page and find one? Im scared to do anything to mess it up .. guess I'm a chicken. :(