1... Actually I think you should be altering the Setup.ini and not the viuals.ini
Pretty sure that's how I did it .. Set these all to Highest
[GAMEMENUOPTIONS]
graphicslowterrain=lowest
graphicslowentity=lowest
graphicslowgrass=lowest
graphicsmediumterrain=medium
graphicsmediumentity=medium
graphicsmediumgrass=medium
graphicshighterrain=highest
graphicshighentity=highest
graphicshighgrass=highest
2... The sound depends on what your referring to ... Music perhaps, ambient sound ?
If it those I would usually put the start marker in a trigger zone and add " Musicinzone.lua " to it
The only person ever to get all his work done by "Friday" was Robinson Crusoe..